John Wesley “JACK” MITCHELL FRS

(1913-2007)

An outstanding international scientist from New Zealand whose work in chemistry and physics examined the properties of materials and extended the possibilities of high speed photography

 

Work in progress, fuller memoir being developed, see explanatory notes at the end roger@kosmoid.net

Early Life

Jack Mitchell was born in Christchurch, New Zealand on 3 December 1913. His parents were John Wesley Mitchell, born 1885 in Derby, Connecticut, USA, a surveyor’s chain-man (later a jewellery salesman) who’d worked in Chile and Western Australia, and his wife Lucy Ruth Snowball, born at Inglewood near Mount Egmont in Taranaki, New Zealand in 1887. They had married in Waimate, South Canterbury, New Zealand in 1911.

The Mitchells had come originally from Edinburgh via Bermuda and then Maryland in the seventeenth century.  Jack’s father John Wesley Mitchell IV had trained as a civil engineer at the Stevens Institute, Hoboken before travelling and settling in New Zealand.  Jack’s mother’s family the Snowballs came originally from around Teesside in County Durham, later a heartland of chemical industries.  Jack’s mother’s great uncle was Edward Snowball; a prodigious locomotive engineer, he had married a daughter of Robert Stephenson and became the chief draughtsman of the North British Locomotive Company’s Hyde Park Works in Glasgow. On the Snowball maternal side were Allports, descended from a Birmingham silversmith. The Allports had scratched a living at Stoke near Nelson, NZ, not far from the birthplace of Ernest Rutherford.  Jack’s Allport great-grandmother lived to a great age in Picton in 1921.  She’d been born Rachel Willett in Shenley, Buckinghamshire in 1831, her parents emigrated to New South Wales,  and she met her Alport husband when he was looking for work there.  

Jack was an only child.  Living in the Christchurch railway suburb of Sydenham in a small house at 92 King Street off the southern end of Colombo Street, Jack was baptised into the Anglican communion by Reverend Hugh S. Leach in April 1915.  After the War he was educated at Sydenham Primary where he became Dux of the school, and in 1926 he started at Christchurch Boys High School.

But it was his home environment that nurtured Jack’s interest in nature, his aptitude for careful exploration and recording.  His father had built up a library of books about New Zealand flora and geology, most of them well-illustrated. These the boy studied from an early age. Jack recalled that from the first his father and mother encouraged him “to recognise the native birds and their songs and to learn about their habits.  I collected, pressed and mounted specimens and learned the names of the native ferns, plants, shrubs and trees, grouping them in their ecological associations. I also collected specimens and thin chips from the andesitic and basaltic lava flows and radiating trachyte dykes around the crater rim of the Lyttleton volcano, being particularly fascinated by cavities lined by beautiful transparent crystallites which I later learned to be chabazite, heulandite and other zeolites. 

Brought up by his father to appreciate the wider relationships of botany and geology and avoid blinkered specialism, Jack had a precocious aptitude for practical correlative science in the tradition of naturalists like Edward Forbes (1815-1854) and TH Huxley (1825-1895).  Their holistic and geographically-mindful approach animated many panoramic teachers around the world, some extremely controversial like AW Bickerton (1842-1929) in New Zealand,  Patrick Geddes in Scotland (1854-1932), or correlative geographer TG Taylor in Australia (1880-1963), some less so like New Zealand’s level-headed political historian James Hight (1870-1958). Jack Mitchell was ever-ready to connect and respond to the influences of this broader world-view.

Alert to the possibilities for extending his field studies among the panoramas that surrounded him on his doorstep, Jack joined the Canterbury Mountaineering Club with his father after its formation in 1925.  He spent weekends with his father and with Club groups tramping and climbing on the Banks Peninsula and the peaks of the foothills.  He also developed early skills in practical photography and microscopic slide preparation.

Christchurch’s Port Hills above Lyttleton and the Banks Peninsula beyond

 

As he grew older and –with the members of the club– more experienced, the range of their expeditions extended to the upper Waimakariri river valley between the foothills and the Southern Alps and the other high mountain passes to Westland. They climbed many peaks in these areas and encountered snowfields and glacier ice for the first time.

 

Jack visited South Westland several times and after his sixteenth birthday travelled by train via Hokitika to Ross on the West Coast, then by bike for ninety miles through the dense rain forest to Waiho and the Franz Josef Glacier.  “I found what were for me entirely new associations in the flora of the rain forest and, for the first time, metamorphic rocks”.

 

Old flumes at Ross ; Franz Josef Glacier beyond the Waiho suspension bridge

 

Later, still aged 16, Jack spent three weeks in 1930 in the old lake bed of the upper Rakaia Valley in Canterbury with Carl Caldenius of the Geochronological Institute of Stockholm, smoothing vertical strips on the cliffs and cutting out sections of the varved glacial silt deposits for comparison with other worldwide studies for Baron Gerard de Geer’s Swedish Time Scale and Caldenius’s earlier work in Argentina.

Jack Mitchell FRS
John Wesley Mitchell
early life in New Zealand
from among his own photographs

Canterbury College

Building on his school performance in the qualifying examinations to select University candidates in 1927, Jack had won a scholarship to Canterbury University College at Christchurch in 1930 and began study there for a Bachelor of Science in 1931, with an initial spread of Mathematics, Applied Maths, Physics and Chemistry.

Professor Bickerton
NZ scientist     Ernest Rutherford
NZ scientist

Canterbury College master and pupil: Bickerton and Rutherford -practical experiments, wide-ranging thoughts

Here in the heart of the city was the Department of Chemistry that Bickerton had established nearly sixty years earlier. Its perspectives reflected Bickerton’s keen interest in physics and it had nurtured Bickerton’s brilliant pupil Ernest Rutherford.  The legendary and wayward Bickerton had long since left the college amidst controversy.  A key early influence on Jack, he died in 1929.  The Chemistry Department was now in the hands of Liverpool and Heidelberg trained Henry George Denham, an inspiring demonstrator and able administrator.  Denham’s public spirited outlook and active interest in the applications of science later earned him a key role in the Department of Scientific and Industrial Research and honorary membership of the Society of Chemical Industry.  Denham was better at encouraging students on the nursery slopes than engaging with their higher research.  He no doubt found the phenomenon of Jack Mitchell a little too hot to handle. But under his general direction Jack took a First in Chemistry and won many prizes and awards.

Professor Robert Speight
Canterbury University College Geology
NZ scientistFranz Josef Glacier
Speight plan

Robert Speight (1867-1949)

Canterbury’s ever-active and interested Professor of Geology 

Jack Mitchell had continued his adventures with the Canterbury Mountaineering Club, and indeed it was his scientific findings in the mountains that most engaged his enthusiasm.  In this his natural ally was the retired Canterbury geology professor, Robert Speight, a co-founder of the Club, now curator of the University museum and president of the New Zealand Institute, soon to become the Royal Society of New Zealand.  Speight shared Jack’s ecological perspectives and was the true mentor of his university education in New Zealand.

Jack Mitchell FRS
John Wesley Mitchell
early life in New Zealand
from among his own photographs

The University Library has a series of 1932 climbing pictures of Jack and his friends Alex Graham, Anne Stevenson, Louie Roberts and Tom Sheenan.  On all his climbing expeditions Jack carried a geological hammer, collected specimens from the different regional zones of metamorphic rocks of the Southern Alps, and made thin sections of them when he returned to Christchurch.

 

Jack’s original intention had been to study geology at the university, but Professor Speight, who had made such major contributions to knowledge of the Lyttleton and Akaroa volcanoes of the Banks Peninsula, had retired and become Curator of the Canterbury Museum.  Formal geology teaching was now led by a palaeontologist and a stratigrapher and Jack had no interest in these areas.  “I began to accompany ‘Bobby’ Speight on his field expeditions in 1930 and was given a thorough and systematic training in crystallography, optical mineralogy, and the petrology of igneous and metamorphic rocks by him.”  Jack made many hundreds of thin sections of exceptional quality, including sections of nephrite in which the individual actinolite crystals were fully resolved, and learned to use the polarizing microscope as a scientific instrument.  “I owe much of my lifelong interest in crystalline solids and the processes of physical and chemical change in the solid state to this informal work which satisfied my research interests”. But Jack was warned by Professor Denham, as head of the Chemistry Department, that he would fail his final BSc examinations if he spent so much time on outside interests.  “Without being aware of it, I was laying sound foundations for the future.”

 

Though Jack Mitchell placed a high value on his practical training, he gained a lot too from the lectures he attended.  “I learned systematic inorganic and physical chemistry from the excellent lectures of H. G. Denham and organic chemistry from those of J. Packer.  In mathematics, I was particularly interested in all aspects of geometry and symmetry, in vector methods and vector analysis, and in linear algebra and matrix methods.  The lectures of C. C. Farr FRS and the laboratory work in the Department of Physics failed to challenge me although I was keenly interested in the subject.”

 

As a teenager during the summer vacations of 1931-1933 Jack worked first as a porter and then as a guide at the Franz Josef Glacier Hotel.  Wide knowledge and keen observation in one so young made him a popular and long-remembered guide for many overseas visitors and their expeditions.  Jack always made the effort to collect and press specimens from the successive zones of vegetation between the rain forest at sea level to the highest alpine levels. During this time Jack accompanied Lord Bledisloe the Governor-General of New Zealand and Lady Bledisloe on botanical expeditions where they collected the ferns of the rain forest.  This extensive botanical work led to Jack’s first paper, The Vegetation of the Arthur Pass National Park, later published as part of the Handbook to the Park in 1935.

Lord and Lady Bledisloe

 

Professor Speight refers to Jack in generous terms in the paper he gave to the Philosophical Institute of Canterbury in April 1934: Mitchell had lent him useful 1929 pictures of the glacier, and had told Speight a theory of his own about the vegetation on the glaciated level valley walls: “there is a lower belt where the trees are stunted, and a higher belt where they are larger, and it is usually assumed that the difference is due to the more recent abandonment of the lower levels by the ice.  Mr J. Mitchell, one of the guides at the glacier and a keen observer of natural history, has mentioned to me that the large trees correspond to a belt of crushed rock, probably due to the over-thrusting of the schist by the greywacke, the movement being from the east, and that the difference in growth of the trees may be due to the difference in the nature of the ground on which the trees have been established, the lower part being solid inhospitable schist, and the top the more kindly broken greywacke.  If the divergence in the character of the vegetation is really due to delayed evacuation of the lower levels by the ice as compared to the upper levels, then the lower belt of stunted trees extending along the valley walls should rise as steeply as the valley gradient, if not more steeply, and it does not do so.  This is in favour of Mr Mitchell’s contention, but the point needs further investigation.”

 

In 1934 Jack was awarded the Charles Cook Memorial Prize of Canterbury University College for his work on metamorphic petrology. He would be heading for Oxford.  But first, in the name of science and of his native New Zealand, Jack was determined to pull together all his talents for exploration and practical study to the utmost.   He spent his final eight months in New Zealand in 1934-1935 on the West Coast of the South Island, where he systematically examined the zones of regional metamorphism in the Southern Alps and the nephrite masses of the Pounamou formation on the Griffin Range and in the Arahura Valley of northern Westland.  “I left this open air life with great reluctance but always retained my interest in natural history”.

 

In this last careful photographic and geological survey of tracts of New Zealand’s Southern Alps, preparing hundreds of thin-section slides from the rock samples he took, Jack had found some astonishing and unexpected similarities with equivalent rock studies of Unst in Shetland recorded by Herbert Harold Read, the former head of the Scottish Geological Survey who had taken up a professorship at Liverpool University.   Governor-General Bledisloe took a personal interest in the results of Jack’s work, which seemed to show such individual, academic, scientific and economic promise. Canterbury’s Rector, James Hight, was a wise and influential supporter.

Henry George Denham
Professor of Chemistry
Canterbury University College NZ              Dr James Hight
Rector Canterbury University College NZ

Henry George Denham (1880-1943)         Dr James Hight (1870-1958)      ,

   Canterbury’s Professor of Chemistry      Rector of Canterbury University College

By the time he was ready to leave his homeland, Jack Mitchell had become confident of his abilities, and assured of excellent contacts in the scientific world. His cryptic academic record card of progress 1927-1935 among those on deposit in the New Zealand archives is headed with the pencilled word Brick –someone clearly considered him a solid and dependable prospect.  By now Jack had become heir to the late Professor Bickerton’s notes. Eager to pass on what he had learned, to serve and be served, he made it his business to communicate with the people he met –testimonials from Denham and Hight describing him as probably the most brilliant student in New Zealand today.

Across the Tasman to Sydney

Jack Mitchell came to England as an 1851 Exhibition Scholar from Canterbury University College, New Zealand in 1935.   This was a Research Fellowship awarded annually by Royal Commission for the Exhibition of 1851 as a three-year research scholarship to around eight "young scientists or engineers of exceptional promise" across the British Empire.  Ernest Rutherford and Dr Denham had been Exhibition Scholars from Canterbury before him.   Jack Mitchell was destined for Oxford, where Rutherford’s old collaborator the Nobel Laureate Frederick Soddy was the Dr Lee Professor of Chemistry.

Jack Mitchell travelled to England with another student from Canterbury.  On his way to Oriel College Oxford was the Rhodes Scholar in history Winston Monk (1912-1954) -who at once became a close friend.  Also travelling ware a number of young New Zealand academics including J.P. Belshaw and Don McElwain.  Awarded a free passage as part of his research scholarship, Jack was able to reach England in a little more luxury than most NZ students.  He sailed first in the Marama across the Tasman Sea from Wellington to Sydney, to transfer there with Monk to the P&O liner Maloja for the long journey to England.

P & O liner Maloja

 

Their Sydney stopover in August 1935 gave them time to meet old and new friends (often more than once). Jack and Winston made contact with A. K. Anderson and his family, Winston’s old headmaster at St Andrew’s Christchurch, who was now head at Scots College and who took them later to St Stephens in Macquarie Street, at that time “the newest great church in the Empire”.   Jack’s friend Clare, daughter of Rabbi Danglow of Melbourne, showed the pair the sights and surroundings in a chauffeur-driven car, and they yarned with Harley, a mutual friend from New Zealand employed by the Davis Gelatine Company which made “60% of the  gelatine of the Empire” in conjunction with the Michaelis Hallenstein tannery combine of Australia and New Zealand.  Walks through the city centre gave Jack’s interest in economic geology full rein in identifying and enjoying the stone of the great new buildings -he could hardly keep his hands off the Commonwealth of Australia Savings Bank. There were plenty of opportunities for him to take photographs.

On August 16th Jack and Winston were shown Sydney University and bowled over with the magnificence of its appointments and endowments: 15 faculties, almost each of them subdivided, and a sound and underworked professorial staff.  The Geological Buildings alone were larger than most of Canterbury College and held a museum arranged and cared for much more effectively than anything they had seen in New Zealand.  They met Dr G.D. Osborne, a friendly young lecturer fresh from Cambridge: “Jack says he’s a specialist (that damning him in his eyes though not necessarily in mine)”.   Later a Professor, Osborne became President of the Royal Society of New South Wales and first Patron of The Gemmological Association of Australia.   When Jack elaborated on his own 8 months of survey in the Southern Alps, his 900 hand-made slide-mounted rock-samples worked over 150 miles coast-to-coast in places, and his discovery of practically identical formations to those H.H. Read had found in the Shetland Islands, he was not sure that Osborne fully understood.

But Jack had further opportunities to impress his elders at a meeting of East Australia’s geological establishment at the Geological Society in Gloucester Street with such worthies as Osborne, Andrews “lucid”, Ryder Brown “accomplished, confident, bigger than his subject” and Queensland’s Wauchope “highly thought of”.  Jack and Winston had supper with Osborne in George Street, and returned to the University five days later, showing some of Jack’s rock slides to Osborne and Jocelyn through the microscope. “They thought his work marvellous, but obviously couldn’t appreciate it”.

 

At La Perouse, Botany Bay on 25 August Jack introduced Winston to the botany of the sand hills, demonstrating the characteristics of the pea, the heath, the myrtle, the thyme, and the pine, and telling him he could learn the fundamentals of Botany in a week. Later, describing the elements of geology and chemistry plainly and lucidly in a way that his companion could easily understand, Jack said he always studied a subject as if he were required to teach it. He described the natural origin of the earth, solar system, universe and island universes following the lines of Professor Bickerton’s hypothesis. On the strength of the Second Law of Thermodynamics, Jack talked of an original uniformity of matter in space, and a tendency for change towards maximum probability; these he regarded as evidenced by experience and more than mere assumptions.  He’d concluded that “the historical mind is also the scientific mind”.

Athough starting in a series of unsatisfactory Sydney lodgings -one turned out to be a brothel- for most of their time Jack and Winston were able to use their cabins on the Maloja, berthed at Pyrmont prior to final departure from Circular Quay.  One day Jack returned to his cabin and left his coat on the bed. Returning a few minutes later he discovered the steward going through his pockets. He called for the Chief Officer and they found the steward with a pound note, of which Jack had the number, caught red-handed.  In the evening, having thought things over and the steward had approached him with the story of a wife and family, clean record and all that, Jack relented his original intention to pursue the matter.  Prickly and ready for combat when his blood was up, Jack was equally notable for the gentle and forgiving side of his nature.

 

Boy with pigeons at Circular Quay, mid 1935               Bligh’s Log

Before they left Sydney, Jack and Winston visited the Mitchell Library and were shown some of its most valuable records: Tasman, Banks, Cook, and Marsden originals, Captain Bligh’s log from the Bounty, and a first folio of Shakespeare. They found the Sydney Art Gallery in the Botanical Gardens was much better than their own familiar McDougall Gallery in Christchurch.  They were entertained by the family of Don McElwayn –also heading for England on the Maloja.   Belshaw and Eric Haslam had left Sydney already on August 17 on the Orient Line’s Oronsay.  Now as the Maloja moved away from Circular Quay, their own journey to England began.

 

Round the south of Australia

On their first day in Melbourne, Jack and Winston went ashore in the heat of the morning and made their way to Flinders and Collins Streets, St Kilda Road, the Botanical Gardens, and the Shrine of Remembrance.  New Zealanders from Christchurch and Canterbury often feel at home in Melbourne.  They were entranced by the verdure of the gardens, after Sydney, and surprised at the number of horsemen and women in the city.  The second day was devoted to the University, where Jack went to meet Professor Stillwell of the Geology department and his assistant Dr Edwards.  Old Stillwell had been geologist in Scott’s polar expeditions; young Edwards was just returned from a year at Cambridge and now engaged in government work.  University buildings were not nearly as satisfactory as Sydney, though the residential colleges appeared impressive. The New Zealanders were surprised to find them being run on denominational lines.  In the Chemistry department they met Dr Bayliss, expert in spectroscopy, a former Australian Rhodes scholar and a friend of their countryman, Alex Haslam, Canterbury’s Rhodes scholar in Law.  The head of the chemistry department, Professor E J Hartung (1893-1979), a world expert in photographic science, was on hand to talk to them.  He had studied the photolysis of silver halides with a microbalance in the nineteen twenties and reminded Jack strongly of J H E Schroder, the Canterbury literary commentator.

 

Ernst J Hartung (1893-1979)        Raymond E Priestley (1886-1974)

Melbourne’s Professor of Chemistry     Chancellor of Melbourne University

Finally, Mitchell and Monk were introduced to Dr R E Priestley (1886-1974), Chancellor of Melbourne University and a highly regarded former administrator at Cambridge -he had begun his scientific career as a Bristol-trained geologist and polar explorer.  The gentle, brisk, quiet, precise Priestley gave them a good deal of his time and advice, taking them off by train to an excellent lunch at The Wattle. He was particularly keen that Jack should make an effort to get into residence for some part of his time at Oxford (as a non resident scholar, Jack was heading for St Catherines, a non-collegiate Oxford students association at that time, and would have to find digs). He couldn’t praise the residential life enough, in contrast to views Dr Edwards had expressed earlier in the day.

To share on the voyage Jack bought Jeans’ “New Background of Science” and Winston a title by Eddington at Cole’s Book Arcade, before they were picked up by Jean Danglow and her friend Margaret, both history students, and driven to the top of Mount Dandenong, 30 miles north.  The group returned through the gloaming for dinner with the family, Rabbi Danglow and his wife and son Frank at their house just off St Kilda boulevard. The Rabbi had just had his Plymouth car stolen from the garage and smashed up, and was a little hurt by that.  The younger Danglows took Jack and Winston to the Athananeum to see Elizabeth Bergner in Escape Me Never –a new film by her husband Paul Czinner with the technical talents of David Lean, Freddie Young and William Walton.  They then drove the two New Zealanders back to the Maloja to see them off.

 

The ship travelled on to Adelaide, where Jack and Winston trained from port to city to see its public buildings, parks and an excellent layout. They thought the inhabitants seemed red or pale and hot-looking. They were not unhappy to return to the boat, passing through depressing slums and hovels and the particularly fine railway station.  Back on board the pair got a first taste of English social distinctions when Jack’s companion had to leave the first class lounge (Jack alone had a first class cabin and other passengers objected to his having a visitor from tourist class). The next leg of the voyage across the Australian Bight was stormy.  Jack was wakened by a neighbouring woman’s screams that the ship was sinking.  Seawater came in through a ventilator and washed along the corridor from a smashed forward hatch.

Stürmische See zwischen Adelaide u. Fremantle 31. Aug. 1935
Nelly Steckler
Winston Monk collection

Photo given to Winston by Nelly Steckler, a Swiss fellow passenger on the Maloja,

inscribed Stürmische See zwischen Adelaide u. Fremantle 31. Aug. 1935

 

A long haul to England

The rest of his journey was to be very uncomfortable. Overdue at “grubby little Fremantle where Jack and Winston took a break ashore for a cup of tea at the Kia-Ora Café, the ship prepared to battle another storm in the Indian Ocean on its ten day stretch to Colombo. As the Maloja left Australasia behind, Jack became quite seriously ill.  While Winston regularly took morning exercises, swam in the pool, dined daily with some of the younger tourist-class fellow passengers, and danced a little with Nelly Steckler, Jack progressively withdrew to his first-class saloon.  He developed nasal ulcers which were treated by the ship’s doctor, and then was stricken with septic tonsils which gave him a lot of pain and distress. An operation in the heat of the tropics was out of the question, he would just have to wait till London -rotten luck for a chap.  But Jack was not completely indisposed. He played games, talked, and sat with his friend.  In the evenings Winston would take coffee in the tourist lounge and then go up to the boat deck to sit for an hour with Jack, dreaming and meditating, and drinking in the intoxicating atmosphere.  It’s really an enchanting and romantic setting, strains of orchestral music wafted lazily by the warm breeze from the dancing on the main deck, soothing and spicy to the ear, the warmth of the wind itself as the ship moves steadily across the water. It’s the Indian Ocean; the breezes come from Africa and from India.  The moon above is pale but bright, with an electric lightness, partly obscuring the lesser lights of the stars, and it casts its radiance broad across the expanse of sea, rippling gently in its light, with its lightest wavelet flecking into shreds of tired foam.  The waters move so lazily, Jack says, because they are so replete with organic life; forming a perfect natural incubator. Couples sit in the gloom of the boat deck in their chairs; now and then a ship’s bell; the noise of feet and voices below barely discernible, but the music enchanting.  After crossing the Equator, Jack felt able to join a larger party for some beers.  Four days later they arrived in Ceylon at Colombo, and Jack made up a party of five for the 75 mile drive to the interior in a big Bean car to visit Kandy.

 

Two days later the Maloja docked at Bombay; the passengers had been warned of a smallpox outbreak there. Visiting the fish and meat market, Jack was separated from the rest of his party for a while because he couldn’t stand the smell.  They saw the Zoo and Parks, Malabar Hill, Towers of Silence and the Gateway of India before returning to the Maloja at Ballard Pier.

Finding himself with a new whisky-soaked room-mate, Winston shifted to a joint cabin with Jack.  As the ship moved on through the days to Aden, Jack was again unwell, with hardly a bite to eat since Bombay and indeed precious little since Adelaide. Winston tried painting his throat, but it only made Jack sick.  At Aden the ship was joined by a number of Naval officers, apparently because of the Abyssinian dispute.  Moving towards the cooler north up the Red Sea, and sleeping out on the hatch guarded by Winston and his companions, Jack was for the first time able to get some decent sleep.  The high cliffs of sandstone of the Sinai showing their layered geological formations rose up abruptly on either side, and the Maloja was soon passing Port Tewfik into the Suez Canal  - Jack staying up on the boat deck to watch progress almost as far as Port Said.  As more and more people came aboard to add to the ship’s malodorous cosmopolitanism, he swore he’d never travel by P&O again.

Across the Med

But things were getting better.  As the Maloja slipped out of port, Port Said seemed like a postcard with its great steamers, battle cruisers, aircraft carriers, and little Arab yachts and dhows.  As they left the greenish Nile waters behind and moved steadily into the smooth blue Mediterranean, the heat became less oppressive.  Jack noticed some improvement in his nose and throat.  He’d lost over a stone in weight. He was able to eat a little.  He was also able to resume his scientific commentaries which Winston occasionally found wearing.

Jack played chess with Wood, an Australian history scholar headed for Balliol, a long angular, awkward, decent aloof type.  Winston played draughts with Andre Galiay, a 15-year-old French boy returning from Polynesia, All of them tended to be beaten by the scruffy old Irish habitué of the ship’s bar.  Retiring to bed at 2am after one such evening, Winston had a bit of a word with Jack which he took rather seriously to heart, about his tendency to be dogmatic.  Next day Jack washed one of his friend’s shirts in typical forgiveness.

Slipping past the formidable Chateau d’If on the morning of September 27, the Maloja drew alongside the P&O dock at Marseilles. It was time to say goodbye to young Andre Galiay and the good-natured Nelly Steckler.  Jack, Wood and Winston strode manfully along the line of docks and up to town to the famous Rue Canabiere.  Jack pointed out that the streets and lanes were cobbled with a beautiful building stone. They saw workmen laying down the stones, setting them in fine sandstone.  Microsyenite, a fine quarried granite, Jack said it was.  He contrasted it with the soft chalky marble that made up most of the country areas around.  Back at sea Winston had more words with Jack and said under provocation that he didn’t want to hear any more on certain scientific subjects. As a result, Jack refused to give the chemistry and botany lessons he’d promised. But next day all was well, with Jack joining in draughts and teaching Winston chess. September 30 saw Jack up before 6 to see the sun rise out of Africa as the Maloja pulled in to Tangier.

Having disgorged its French passengers, Maloja headed across the strait to Gibraltar, and Jack and friends made a two hour tour of the rock in a six-seater –Jack pointing out the Canadian ash trees, a species of pine with beautiful light green feathery leaves. Then two and a half days across the bays of Trafalgar and Biscay to the first sight of Eddystone lighthouse in the early morning of October 3 and the green fields and red cliffs of England’s rock-bound south west coast.

 

Work in progress, fuller page being developed roger@kosmoid.net

Arrived in London

Next morning the Maloja berthed at Tilbury and Jack, Wood and Winston trained in to St Pancras.  At the station they were met by Canterbury University College man Stewart Fitzgerald who’d been in England for a year doing chemical research at London University supported by his own savings.  Fitzgerald shepherded them to New Zealand House, where they met Una Powell, the CUC maths expert, and were given the address of somewhere to stay: Mr Jones boarding house at 9 Taviton Street, Bloomsbury.

Walking through the streets together in wind and rain on their first day Saturday 5 October, down Southampton Row and Kingsway to the Strand, London seemed to Jack and Winston disappointingly small, dead and dismal. The Thames was slushy with rubbish floating down. Westminster Abbey and the Houses of Parliament (undergoing exterior renovation) looked dull and dirty, and notably inferior in building stone to the great buildings they’d seen in Sydney.  Later they were to sense that the dusty and dismal exterior held the dignity and peculiar charm of trusty, solid, true, imperturbable old England.

But the greyness showed up their own lack of sparkle as companions.  Jack and I get on each other’s nerves…with my endless chatter and chaff about things that don’t matter. And I, however much I admire him, and in a sense like him, cannot but feel he’s far too staid and stiff, far too sincere and earnest, far too serious and heavy, to be a good comrade for me for long.  He hasn’t the spark of mischief that I like to see break out like an oasis in the dross and the dull and the monotonous.  Personally since leaving N.Z. I’ve been stirred to continued joy and mischief in the sights I’ve seen and the people I’ve met.  Jack responds but faintly, and it’s not because response alone is what’s needed; one wants initiative.  Perhaps it’s too much brain.  And I know we both have a fund of obstinacy and self-will exercised though they be in varied channels.  Let’s make the best of it, though.  Our time abroad so far has been very, very interesting and profitable indeed.  That evening they had dinner at Slater’s in the Strand for four shillings apiece, with New Zealanders Fieldhouse (education & psychology, Victoria College Wellington) and John D. White. Then a good picture-show double bill: Noel Coward in The Scoundrel and Maurice Chevalier in The Man from the Folies Bergere, the latter’s phrase “Mademoiselle que j’aime giving Jack and Winston a lot of amusement for some reason.

On Sunday 6 October they made a visit to the meat and fish markets (which rather smacked of Bombay). They watched a service at St Pauls which conveyed a sense of timelessness and the beating heart of a nation. And they spent two hours yarning with Ian Milner’s friend the Hellenist Dale Trendall, a New Zealander who had all but disguised the fact. They found him the queerest of fish but were impressed by his command of European languages and encouraged to learn for themselves.  

     Milner in 1935                      Trendall twenty years later

Winston Monk

Work in progress, section being developed roger@kosmoid.net

 

Early days at Oxford: Soddy’s position in 1935

Arriving in Oxford, where he was to study in the Trinity Labs, Jack had to look for somewhere to stay. Winston had a Rhodes-funded place at Oriel College, but Jack’s position was as a member of the St Catherines Society, a delegacy of non-collegiate students offering university education at Oxford without the costs of college membership.

Work in progress, section being developed

Frederick Soddy                                 Cyril Hinshelwood

Work in progress, section being developed

Gunther Motz
Oriel College Oxford
Winston Monk collection

At Oriel, Winston shared rooms with German Rhodes Scholar Gunther Motz

Motz became a good friend of Jack Mitchell.

Impressions and the daily round

 

November 1935

Monday 25  Jack called for Winston at Oriel after dinner and they went round to the Hongi Club in Ian Milner’s rooms at New College. Milner, Davis, Cooper, Riddiford, Tucker and Mulgan were there with Mitchell and Monk to hear Barney Ford, an economist and journalist, talk about New Zealand’s debt, economy, unemployment and the political situation. With an election there due within hours, Ford expected Labour to get in, though on the merits of the parties he repeated Professor Murphy’s words: “Oh I don’t think that one party in NZ is worse than another. After all, it’s impossible that it could be”. Later that week a Labour government was elected in New Zealand and Savage became prime minister. The New Zealanders at Oxford saw a lot of each other. Jack was round again to yarn with Winston at Oriel on Friday and Winston called on Jack for a talk, chess and supper on Sunday 1 December.

December 1935

Tuesday 3: Jack Mitchell’s birthday today: I think 22 but may be 23.

 

1935 Christmas in the Chilterns with the Oxford Group

Work in progress, section being developed

 

January 1936

Erwin Schroedinger (1884-1961)

Saturday January 16 “…Round to Jack in Trinity Lab after lunch; he doesn’t look over-well and was glad to come for a stroll with me in Christchurch meadows.  Next year, after this year’s lab experimenting, he hopes to spend in luxury doing theoretical work under the great scientist Schroedinger.  What an opportunity! And what a man to take advantage of it to the full.”  This was around the time that Schroedinger outlined his cat paradox, a reminder that whatever the probabilities accommodated in theory, reality will always be something definite.  Schroedinger used a photographic analogy that Mitchell would have recognised:  “There is a difference between a shaky or out-of-focus photograph and a snapshot of clouds and fog banks.”  In January it seemed likely that Schroedinger would be taking up a post at Edinburgh University where Jack might have joined him.  But there were visa problems connected with his unconventional ménage and in the autumn the great man went to Graz instead.   Friday January 31: “…Dinner in hall for almost the first time this week; even though abstention only saves my stomach and not my pocket.  Afterwards round for the evening to Jack Mitchell’s where I played a game of chess.  He gave me his ring to give back, saying that I must keep it as my own if I heard that he had blown himself up, or done anything like that.  What he means I’m sure I don’t know, though I believe he is working with some explosives.  He mentions that in his four months in digs, his landlady has changed his sheets etc., once, at the end of two months: he expects the next change to come shortly.  He is boiling with anger at her, and intends leaving her during next term, when he will go into Winkler’s digs up Headington way, that worthy being off on a tour of Spain, after having completed his D.Phil.”.  Winkler [Carl Arthur Winkler (1909-1978)] was a Rhodes Scholar and physical chemist who had been studying the kinetics of decomposition reactions with Hinshelwood; he had previously researched at McGill University under the prodigious Canadian scientist Otto Maass.  After Oxford, Winkler returned to Canada to work for the National Research Council, and later became Head of Chemistry and a vice-principal at McGill.

February 1936

Sunday 23 “…Jack is thinking of going to Munich to study next year as he is not, he says, going ahead at Oxford”   Sunday 27  “…Tea at Balliol, when Jack dropped in, and went, God alone knows why.  He’s beyond me completely these days.”

March 1936

Saturday 7 “…In the afternoon Mitchell in for some hours; he may go with Motz on the cycling tour” Thursday 12  …Jack and Motz listened in to Hitler’s speech at Karlsruhe in the Rhineland. … -Jack gave me some camera instruction.  He’s the soul of goodness to me: it’s better we don’t see too much of each other.”

 

German troops entered the demilitarised Rhineland and Hitler dissolved the Reichstag on 7 March.

France, Britain and Italy did not intervene and German elections on 27 March gave a 98% endorsement.

During the Easter vacation, Jack considered a cycling holiday with Gunther Motz, but his Trinity lab work offered little break. Winston arranged a few weeks inexpensive study and travel in Spain in the company of history colleague the American Matthew Fitzsimons, and Fitz’s friend at Cambridge, the physics student (and later Nobel laureate) Norman Ramsay.

April 1936

On Wednesday 22 Winston was in London at New Zealand House and “met Dr. Denham, looking just a bit dowdy, going up to Oxford in a week to see Hinshelwood and Jack Mitchell.” Denham was pleased with the new Labour government in New Zealand which was getting things done. He was diffident about guaranteed prices however.

Oriel College

Back at Oxford on Friday 24, Jack dropped in at Oriel having just returned from a week in the Lake District with a friend whom he’d guided in New Zealand.  Although they looked very beautiful indeed in the spring when Jack saw them, the “lakes and mountains were all on such a minute scale he thought he could traverse the whole of the Lake District and climb every peak in a single full day. The highest peak in England he didn’t take his hands out of his pockets for.  From it you could see Snowdon in Wales and look north across the Scottish border.  Jack looked much better for his holiday and even drank a beer.  He says he has cleared up his difficulties about his work and will be staying on at Oxford next year.”  The next day, Anzac Day, Saturday 25 Jack came round to Oriel in the evening.  With the promise of spring and summer, though the days of wet and cold were not over, warmth radiated from the Oriel quads and sweetened the joys of college life, even if the rooms were cold and damp.  Jack Mitchell, with his friends among the Rhodes scholars Winston Monk, Gunther Motz, Wilfred Sellars, Matthew Fitzsimons and Charles Sleeth, went to see the film Stormy Weather at the Scala starring Tom Wall, Yvonne Arnaud and Robertson Hare. It was an enjoyable and slightly risqué Gainsborough comedy of its time by Ben Travers. 

North Oxford cinema Scala Jericho Yvonne Arnaud

The Scala, Oxford’s arthouse cinema near Jack’s digs in                     Yvonne Arnaud           .

Walton St.., Jericho. Its proprietor Mr Poynz banned sweets and ice cream.                           .

Back at Oriel later Motz put up a lovely painted blade of an oar he’d won for Torpids.  Apart from Jack, the five friends had Sunday breakfast together at Lyons, and Jack came back to Oriel to spend Sunday evening with them.  He’d been motoring to Gloucester via Worcester, skirting the Cotswolds on the north. Jack said he’d rather enjoyed it, but declared that “if you’ve walked from Oxford to Wytham, you’ve seen England”.  From Oxford to Wytham is just four miles.

Were events now moving towards some kind of a crisis for Jack?  Oxford on Monday 27 was bathed in beautiful sunshine.  Jack was becoming ever more devoted to Oxford, and to his friends.  But he was nobody’s fool.  To protect the tender vulnerability of his ego he could renounce all and everything bitterly if he was not properly appreciated. On Tuesday 28 he stayed with Monk and Motz all evening till supper at eleven, writing a letter. The next few days seemed quiet. He knew that on Wednesday 29 their young New Zealand medical student friend, Alastair MacGibbon would be presiding over the ceremonies to install Lord Allenby, the hero of Damascus, as Rector of Edinburgh University.  In Oxford, the visit of Jack’s old New Zealand tutor was looming.  Dr Denham had helped him in the past.  He was an unwelcome reminder: a man for whom Jack had little respect.

May 1936

On Saturday 2, as Addis Ababa fell to the Italians, Jack called at Oriel and went for a stroll across Christ Church meadows in late afternoon.  On Sunday 3 he arranged to give his friends Fitzsimons and Monk lunch at his digs in 29 Walton Crescent, then they joined Motz for tennis for a whole afternoon at the Oriel grounds in Southfield Road.  As a group they were all bad players, but patient enough to enjoy gradually improving their game.  Jack stayed in Oriel all evening while Winston studied Trevelyan. He was there again the next evening enjoying a little beer with Motz.  Jack was back the next weekend on Sunday 10 to walk with Monk round Christ Church meadows, go for lunch with Motz, then spend another joyous tennis afternoon at Southfield Road; Sellars and Sleeth joining in to make it a six this time.  All had tea together in Monk’s room.  Jack Mitchell stayed on working at German texts for three hours while Winston Monk worked on at his Trevelyan.

An unexpected outburst

The next day Monday 11 Winston got a surprising letter from Jack saying that he could no longer bear his ways which irritated him, and that they had better part.  He felt that Winston was evoking a different self in him, one whom he loathed.  This is how he put it: “You have two manners of speaking both of which irritate. One time you are flattering, soft-soaping, simpering, purring, or bull-shitting. The other time you speak from bitterness of heart in a voice which stings.  First you flatter and glut your selfish instincts with the foolishness of the flattered, and then you sting with ill-concealed contempt.  One is as painful as the other.  Having stung the bitter heart relents and tries to ease the wound by purring.  The Mitchell whom the few that knew him remember was a quiet, helpful, unobtrusive chap, not the loathsome, intolerable, arrogant, overbearing, obnoxiously selfish, swollen-headed specimen, capable of using every dishonest trick of intellect, whom you have evoked……  How is it that Motz induces the one yet never the other?”  Winston took this to heart as an echo of another old friend’s criticism and added: “Well the fault is mine, partly my manner, and partly that I’ve never understood Jack.  God knows I don’t follow him now. We shall see.”

On Tuesday 12 Jack came to lunch in response to Winston’s invitation “…we walked hard for 3 hours in the afternoon, scarcely hinted at row, and so, I take it, are friends again or still. What came over him God knows; he ought to know me better by this time; but is infernally sensitive.  We walked up the river past punts with women and punts with men, and finally crawled through fields to get to Elsfield, a village on a tidy little hillock, with a good view of the spires of Oxford showing like teeth of a saw above the trees: on a really clear day it should make a fine photo.  (The writer John) Buchan’s place is a bare block-stone two-storey building, fair on the footpath, and doesn’t look suitable for Lord Tweedsmuir, Governor General of the premier dominion.  It was fast shuttered. 

“The fields and trees had a lovely golden tinge in the sunlight among the green and were a very beautiful sight below us. Jack told me innumerable names of English field flowers: cowslips, forgetmenots, bluebells and others, the wild varieties from which exciting lilies, primroses, etc. have been cultivated. The paddocks are teeming with these beautiful wild weeds.”

In the week that followed it’s fair to guess that Jack was engaged in shepherding his New Zealand chemistry lecturer Dr Denham around some of Oxford’s scientific facilities and inhabitants, and listening to what Denham and Hinshelwood had to say to each other about scientific education and research.  On Friday came the disturbing news that a Balliol undergraduate had been found murdered in a field near Stadhampton.

On Saturday 16 about 6pm Jack called on Winston so they could go together for dinner with Dr Denham and his wife at Iffley Road. “We had a good meal and quite a pleasant evening.  The Doctor was very companionable and Mrs Denham very homely in a prim sort of way. I drew a rather strained picture of Oxford life to encourage Dr Denham to go ahead with the residential life at Canterbury College; he is going to use every endeavour to get a warden system and tutors going, but leaving to the chaps a maximum of self-government in contrast to the Oxford system.” 

St Catherines versus Trinity: tug of war for Jack  -“what a dust-up!”

Nevil Sidgwick FRS  Lord Halifax

Nevil Sidgwick FRS                          Lord Halifax

Lindsay of Balliol  Ross of Oriel

Lindsay of Balliol               Ross of Oriel “very intelligent and obliging”

There was much to-ing and fro-ing on Sunday 17.  Jack came round to read in the morning, Winston returned to Jack’s for lunch, they played tennis in the afternoon at Bartlemas, and Winston put on tea for Jack.  Clearly, their skirmishes had ended for the moment.  But at another level, University tectonics were clashing with Jack at the epicentre.  In a visit to Winston at Oriel late that evening, Jack confided “how he had had to fight -with Hinshelwood’s and Sidgwick’s support- to be allowed to leave St Catherine’s Society and enter Trinity. Trinity is one of the 2 colleges that can co-opt in that way.  Brooks of St Cath’s appealed to the Vice Chancellor, Lindsay, who, finally, upheld him on the statute he quoted.  Sidgwick then sent an appeal to the Chancellor, Lord Halifax, a lawyer, who asserted Trinity’s ancient right. The effort was being made to help Brooks save his face, though whether Jack’s vicious letter of this right to the point, seemed a different matter. Jack had dealings with Oriel’s provost, Dr Ross, and found him very intelligent and obliging –he was representative of St Cath’s.  What a dust-up!”  Professor Nevil Sidgwick FRS of Lincoln College, the author of The Relation of Physics to Chemistry (1931) was the senior figure in Oxford chemistry in the awkward interregnum caused by Professor Soddy’s virtual departure –in fact he had probably been wielding a good deal more clout than Soddy for almost a decade. He was obviously determined to secure Jack’s services by going to the very top – over the prominent head of Vice-Chancellor Lindsay of Balliol, to Lord Halifax, former Viceroy of India and trusted member of prime minister Stanley Baldwin’s inner cabinet. But no matter what sensible Thurso-born Provost Ross of Oriel was prepared to concede on behalf of St Cath’s, Brook the combative head of this non-collegiate Society was not going to let Jack go without a fight. 

Thursday 21 saw the start of eights week and Motz and his team kept Oriel I at the head of the river.  On Friday 22 they kept their place with New and Magdalen behind them; Jack came over to Oriel in the evening to play chess.  On Saturday Jack Mitchell was round again, and on Sunday 24 Fitz, Stewart, Sellars, Sleeth, Mitchell and Monk played tennis at the Oriel courts, enjoying it greatly: Jack returning with Winston for tea. 

Jack Mitchell, Gunther Motz and Winston Monk against Wilfrid Sellars, Matthew Fitzsimons and Charles Sleeth

On Monday 25 May Jack photographed Gunther Motz at the start of the race, with great crowds watching, Oriel kept the lead. Jack watched the rowing on Tuesday and came over to Oriel bringing medicine for Fitzsimons’ athletic foot.  Eights week ended on Wednesday 27, Oriel rowing flat out, coming in a length and a half ahead of new and showing its clear supremacy on the river, as a great many very beautiful visitors watched under overcast skies.  On Friday 29 Jack called again for a walk with Winston out to Headington Hill, to get a long view of Oxford spires from Pullen Lane, then back to beat him badly at chess.

  A curious discussion

Jack was over again for tea on Saturday 30 and a curious discussion about Dr Denham, who, in his recent visit from New Zealand, had not taken the slightest interest in the excellent labs he’d been shown at Oxford. He might have learned a lot that would have been useful back in Canterbury University College. Instead, he’d quizzed Jack about the different masters at the Christchurch Boys High School and criticized some of them himself.  Denham was looking to find a new headmaster there.  He was also looking to change the nature of Rhodes scholarships in New Zealand.  What he wanted to encourage was scholarships to Oxford for graduates who’d done some teaching work at home. These might then return to New Zealand to become headmasters of schools for which there was a continuing paucity of good men.  He had written to C. K. Allen at Rhodes House along these lines. Wondering what chance Denham had of putting this idea across, Jack was convinced that he must have an enormously swollen idea of his own importance. 

Jack had gathered that Denham and Hinshelwood shared a dislike of Rhodes scholars “from unfortunate experience.”  So he now turned the spotlight on himself. He was not a Rhodes scholar but something very similar. And he did not like what he saw, “thinking inwardly a lot and disparaging himself for his lazyness and complacency and lack of ambition to get ahead. He had been riding on the crest of a wave and he felt if he didn’t look out it would soon deposit him.  His memory was so good that he had not had to work as hard as others had, and he had become intellectually lazy.  Most of his cracks, I could see, applied to me too.  He said we would get on better if I stopped regarding him as a tin god.  Really he sets himself infernally high standards.”

It was time for another uproariously enjoyable tennis match on Sunday afternoon for Motz, Stewart, Mitchell and Monk. Afterwards, joined by Sellars and Fergusson, they had a solid argument about Germany and Hitler, Sellars and Stewart leading the charge and Monk backing up Motz.

 

June 1936

On Wednesday 3 Jack went out for coffee after dinner with Motz and Monk to Stewart’s. They discussed various ways to make money quickly, from gold in New Guinea to gold in South Westland, New Zealand.

 “A good man at Göttingen

On Saturday June 6, Jack talked for an hour or so with Winston and their American friends Fitz and Sleeth. Matthew A Fitzsimons was later professor of history and psychology at Notre Dame, and Charles R Sleeth was a philologist student of Tolkien and Onions who later edited Webster’s Third.  Sleeth had an invitation to meet the Emperor of Abyssinia in London because he’d contributed a pound to the Abyssinian defence fund, but Jack had his own tale to tell. “Jack it seems has no option but to leave Oxford for Göttingen because Brook, the censor of St Catherine’s Society, will resign if he is admitted to Trinity.  It is a real shame; though Brook (Revd. Victor J. K. Brook 1887-1974) has some case, he is ruling out all possibility of reasonable settlement by threat of going to resign if his view is not upheld.  It means that Jack will never have the advantage –however small it may be- of belonging to an Oxford College.  The old President of Trinity, in his nineties, would admit Jack right away and let Brook, who is hated here, resign and be damned to him.  There is a good man at Göttingen: probably Jack will spend part of his time in Germany with me in the vac.  Ods bods.”   The long-serving, ever-partisan but not-quite-so-elderly President of Trinity was Herbert Blakiston (1862-1942), and among the seven younger Fellows (the fellaheen) on Trinity’s Governing Body available to fight Jack’s corner were his tutor Cyril Hinshelwood and the respected New Zealand ancient historian Ronald Syme.

For a while the outcome of the battle was uncertain.  On Thursday 11 June, Jack called round to show Winston some Auckland Weeklys he’d been sent and explained how he had got thoroughly tight with Hinshelwood the previous night. It was his first experience of this, as he’d always held it before. Still dopy, but glad; he was not too keen on things in general just now.   After Winston’s dinner in hall, Jack called in again, and the two of them walked for an hour through Mesapotamia, the island between the upper and lower Cherwell.  “Jack is definitely going to Göttingen.” They yarned and worked into the night in Winston’s room at Oriel. “Then Motz came in tight with Oliver from a pub crawl and after we had all expressed our dissatisfaction with the world, in his old way, threw the sherry glasses at the wall.” For this their scout Ashenhurst reported them a second time to the Dean.

  

July, August with Winston Monk and Gunther Motz at Engelskirchen

 

New friends at Trinity

1937

Haslam and Motz

Travels in Europe

Reaction Kinetics at Manchester September 1937

Back in Oxford again

 

On 12 October Winston called to find Jack in Trinity. They had not seen each other since June when Jack had been Gunther Motz’s farewell guest at dinner in Oriel.  Jack was more established now. “He has done wonders for himself, being now university demonstrator in spectrology, and tutoring in a minor way. He still remembers his homely ways though. In the summer he made a splendid cycle tour: Oxford – Southampton – Brittany – Nantes – Tours – Rheims – Basel – Black Forest – Switzerland again, round and round, just near us at Grundelwald and then right down the Rhine and into Holland. Only £16 in all and 8 weeks on the way. I believe he’s looking better in health too”. Charles James Laubscher (1915-1996) ­ a South African Rhodes scholar studying law from St Andrews College, Grahamstown, was with Jack at Trinity and Winston walked home with him.  Two days later Jack helped Winston host a visit to Oxford by their mutual friend from Canterbury College days, the New Zealand poet Lillian Jeffreys. Winston took her to Elliston’s for coffee and around Blackwells and Rhodes House in the morning, then handed her over to Jack at Trinity for lunch and the afternoon while he attended graduation at the hands of Vice Chancellor Lindsay in the Sheldonian.  Lillian was charmed by Jack as a host, and she, Jack, Winston, and Johnny Hays (Dyson-Perrin Lab chemistry and engineering Rhodes scholar from Montana) had tea together. Winston hurried her back to London and that evening he first met Lillian’s Irish-Burmese room-mate Kay Bruen, the girl he later married.

 

Happier times at Trinity

Meeting with E A Greswell

Repton School and physics

Arthur Barton

War work at Woolwich and Fort Halstead in the Armament Research Department

Developing Arditron discharge tubes to photograph metal deformation at high speed

 Bristol University Physics Department

H.H. Wills Physics Laboratory at Bristol opened by Ernest Rutherford in the 1920s has hosted the work of Cecil Frank Powell (Nobel Prize 1950); Hans Albrecht Bethe (Nobel Prize 1967); and Sir Nevill Francis Mott (Nobel Prize 1977) as well as Jack Mitchell and Nicolas Cabrera.

By the time his wartime labours at Fort Halstead ended in 1945, Dr Jack Mitchell was an international expert in photographic chemistry and its underlying structural principles.  He was selected by Nevill Mott to join his resurgent Physics Department at Bristol University and coming out of the shadows he began to travel more widely.  On September 3 1947 he was briefly back at Christchurch New Zealand to give an address to the Canterbury Branch of the Royal Society of New Zealand on “Ultra High Speed Photography”.

Ballantynes, the landmark Christchurch store, was wrecked by fire before the year was out

With the ability to travel and make contact with fellow scientists in several languages, Jack Mitchell was able to pull together people and ideas across the board.  He recruited Nicolas Cabrera, son of the exiled Spanish physicist Blas Cabrera, in Paris to join Nevill Mott and himself in Bristol in post-doctorate work. In Bristol Cabrera produced not only the fundamental theory of crystal growth, but also, with Mott, an important paper on the theory of the oxidation of metals.  Cabrera was offered a post in Physics at the University of Virginia in 1952 and Jack Mitchell was to follow him there seven years later.

   Nicolás Cabrera (1913-1989)

Nevill Mott (1905-1996)               Nicolás Cabrera (1913-1989)

.                                                as he appeared in later life

 

Work in progress, section being developed

Professor Thompson’s History of Bristol University Physics Department notes that “J.W.(Jack) Mitchell was one of the people that Mott recruited in 1945 as a result of his war service at Fort Halstead. He was a New Zealander who had previously spent three years at Oxford and two years school-teaching. Originally a physical chemist, he became heavily involved in problems of the photographic process and related matters concerning ionic crystals. He ran a research group of half a dozen students. It was said of him that "he works with an unusually high concentration of energy" and he expected his research students to do the same. This was to put it mildly: one of the students put it more bluntly by describing him as a slave-driver. He was awarded the C.V. Boys prize of the Institute of Physics in 1955; this is given for "distinguished work in experimental physics which is still in progress". In the following year he was elected to the Royal Society. He eventually left in 1959 to take up a professorship in the University of Virginia at Charlottesville, where he stayed for the rest of his working life.   Among his more eminent students we may mention Douglas Keith who held junior staff appointments here for five years, and left in 1957 to take a job in Bell Labs, where he did notable work on polymeric materials. Perhaps the most distinguished, however, was E.W.J.(Bill) Mitchell - no relation. He was seconded to Bristol by the Metropolitan-Vickers Research Labs in Manchester to take a PhD. On leaving Bristol he was appointed to the physics staff of the University of Reading. His distinguished subsequent career involved professorships at Reading and Oxford, and the chairmanship of SERC. He became very influential in the politics of physics research, and received a Knighthood in 1991.”

K.F.Tindall’s memories of the Bristol Physics Department have more background to add: “A man who was very particular about the quality and standard of his photographic work was Dr. J.W. Mitchell. Since his research was into the structure and mechanism of the photographic emulsion this was not surprising. He had a reputation for being a hard man, certainly he was very strict with his postgraduate students and demanded 100% effort from them. I learned to reach his exacting standards with regard to slide making and to accept his occasional criticism, "No, no. That hasn't sufficient contrast" without resentment. I respected him, slightly from afar, and on one occasion, when he was preparing material for a conference in America, I found myself making slides for him up until 10.30 one night. I was quite happy doing this as I knew that he would be in the laboratory until about 3 a.m. preparing material for me to finish the next day. His manner in his dealings with me earned my full co-operation.”

“A colleague of [Bristol Physics researcher] Mr. Gibbs, a Dr. Van der Plank of the Zoology Department, was interested in the problem of the tsetse fly in Africa and Mr. Gibbs had agreed to produce a powerful electronic flash to enable him to take high-speed photographs of their flight. The scheme was to arrange a large box with two beams of light at right-angles crossing about the centre of the box. Each beam was received by a photo-electric cell and a fly interrupting the beams where they crossed would react on both cells and trigger the flash. A camera would be focussed on the intersection.  Electronic flash tubes were relatively new developments and Dr. Jack Mitchell had brought from America an Arditron flash tube giving a flash of around one microsecond, but requiring an operating voltage of 6kV. This was achieved using an induction coil from a Ford car engine, probably a pre-war one since, as I recall, the coil was cased in wood. A 2-microfarad, high voltage capacitor about the size of a small suitcase was used to store the charge. The whole assembly was contained in a war-surplus box with folding legs obtained from Thomas Best's surplus stores in Bath. The finished article was a two-man lift. The first test firing was made with a camera set up in the laboratory focussed on a dribble of water from the tap. The flash, though brief, gave me green spots before my eyes for several minutes but the picture of the water drops was most satisfactory. At the end of the afternoon, having put away the precious Arditron, we realised that the great capacitor was still charged to around 6KV and held an unhealthy number of joules. We hadn't got around, in our excitement at the success, to fitting a safety bleed resistance so the system was lethal. Neither of us felt like shorting the capacitor with a screwdriver, a common enough trick with much lower energies involved but not one to try on our only giant capacitor. There was only one thing to do so we left the room, locking the door behind us, in the hope and expectation that natural leakage would make it safe by the morning. Even so, when I, very cautiously, shorted the terminals the next day there was still a respectable spark albeit a small one. Safety measures were installed and Dr. Van der Plank took it away to Africa. That Christmas he sent Mr. Gibbs a card, the insert to which contained a magnificent picture of a tsetse fly photographed with the apparatus. I say 'magnificent' but a giant enlargement of the head of a tsetse fly is not a pretty sight except, perhaps, to its mother.”

Tindall continues: “The first dry copier system was the Xerox process. This used carbon powder, a strong electrostatic field and heat fixing for the positive image. Because of its application of electrostatic principles it served as a practical topic in lectures on electrostatics. I was present at one of Dr. Jack Mitchell's lectures to the Third Year Honours students when he, having recently visited America and witnessed the process, quoted this instance. I remember, at the conclusion of his explanation, his informing the class that the scheme had a very promising future and he advised them that the Xerox Company represented a very sound financial investment. I wish now that (a) I'd had some capital and, (b) that I had taken his advice.”    The Haloid Company made the first public announcement of xerography on October 22, 1948, and sold their first Haloid XeroX Copier in 1950.  Haloid received research grants from the US Department of Defense to develop the process in the 1950s.  In 1956 Haloid formed Rank Xerox jointly with the Rank Organisation.  Rank’s optical subsidiary was already a supplier of lenses to Haloid.

Joseph C Wilson, head of The Haloid Company in Rochester NY

 Jack Mitchell’s connection with Haloid was presumably because of their eminence in producing papers for photo-reconnaissance.  The Haloid Company was a few years older than Jack and had been founded in 1906 in Kodak’s home town of Rochester, New York. Specialising in high-grade photo-sensitive papers, their new Record quality paper had led them to great profitability in the mid thirties and with a share issue they were able to take over the larger Rectigraph photocopy machine company which used Haloid sensitised papers. Wartime demand for Haloid’s specialised high-quality photographic papers for reconnaissance increased the company’s financial position and encouraged company head Joseph C. Wilson to look for leading-edge technical investment opportunities in its niche market.  From Rectigraph, Haloid had inherited photochemical engineer John H. Dessauer who had earlier worked for the Farben-controlled Ansco company.  At the end of the war it was Dessauer who first prompted Wilson to invest long and hard in the dry-process electron-photography techniques developed by Chester Carlson, though photographic papers would continue to provide the bulk of Haloid-Xerox profits until 1960.  Fuji Film (another photographic company with which Jack Mitchell had excellent contacts) were to join Haloid and Rank in exploiting the Xerox technology after 1962.

In 1955 Jack Mitchell made a passing contribution to work at the Engineering Research Institute of the University of Michigan at Ann Arbor funded by US Air Force Air Research and Development Command (ARDC).  In that year he made a lecture tour through the United States which ARDC sponsored.  The research at Ann Arbor was concerned with the theory of certain energy surfaces and Brillouin zones. Part of this work was an experimental study of features of photographic latent-image formation to contribute to improved understanding. The influence of grain size on the low-intensity reciprocity failure was examined. The work on photographic latent image was reported in two papers at the March meeting of the American Physical Society at Baltimore, Maryland, by R. L. Martin, J. H. Enns, and E. Katz. They had the opportunity at the meeting to discuss their work with Dr. J. Webb of the Kodak Research Laboratory who gave helpful advice. “Dr. J. W. Mitchell, from Bristol, England, visited Ann Arbor on March 19-21 and again on March 31, 1955, on his lecture tour through the United States sponsored by ARDC. He delivered two very interesting lectures at The University of Michigan and discussed at great length with us the results of his work and its relation to ours. This discussion proved very stimulating. Dr. Mitchell's attitude tended more than previously to be phenomenological, which was particularly valuable. Also, grateful mention should be made of the continued kind cooperation received from the Kodak Research Laboratory. Dr. J. A. Leermakers furnished us with emulsions especially prepared for our work on grain-size effects.”

 

Work in progress, section being developed

Kodak and Virginia

In Virginia, Jack Mitchell was a member of the University faculty for twenty years from 1959 to 1979.  With Jack Mitchell, Doris Wilsdorf and Heinz Wilsdorf (in Materials Science), Virginia became a leading centre of research on dislocations and mechanical properties of crystals, and Jack Mitchell’s links with the Kodak Research Laboratories where Dr Leermakers became Director in 1964 were stoutly maintained.  Jack always believed in sharing a close contact with industry, and this was a particular feature of Bristol and Virginia during his active time there. 

National Chemical Laboratory

An interesting foray into a different sort of work developed in 1963, when Mitchell returned to England as Director of the National Chemical Laboratory at Teddington, Middlesex.  Headhunted by Lord Todd, Jack felt honoured by the appointment and was eager to systematically apply his own ideas.  He passionately believed in the importance of research to long term industrial development and industrial prosperity.  But he soon found himself enmeshed like so many others in the administrative complexities and short-term thinking of civil service and political masters.  He resigned his post in frustration after less than a year, feeling he’d been led up the garden path.  The National Chemical Laboratory did not long survive him.  Its closure had already been on the cards, and some of its elements were amalgamated with its better known Teddington neighbour, the National Physical Laboratory. Across the world, India’s sister National Chemical Laboratory has since carried the torch forward to great effect.  With a heavy heart in the immediate aftermath of the NCL debacle, Jack Mitchell was able to put across some of his cherished ideas in his Jubilee Memorial Lectures for the Society of Chemical Industry in February 1965.

Work in progress, section being developed

Return to Virginia, marriage and retirement

Work in progress, section being developed

Jack Mitchell died in July 2007 after a long illness at the age of 93. In the words of the University of Virginia Physics News “his research interests were in the theory of photographic sensitivity and plastic deformation of solids. He was held in the highest esteem by Kodak and other film companies because of his significant work. Jack Mitchell was a fellow of the prestigious Royal Society of Great Britain. Professor Keith Williams presented a memorial colloquium in October about Mitchell’s photography research.”

 

Jack Mitchell gave a legacy of nearly $1,000,000 to Trinity College Oxford to provide funds for outstanding third and fourth year undergraduate students. His Trinity College obituary can be found here.

 

These biographical notes are being extended little by little.  The first impulse to record Jack’s life came from the diaries covering the early Oxford years left by his New Zealand friend Winston Monk, my father-in-law.  To this has been added commentary published by Jack Mitchell’s later Bristol colleagues, with some original research.  At the backbone of the memoir are the eighty pages of Jack Mitchell’s autobiographical notes, thanks to the generosity and encouragement of his step-daughter Jodie Fidler.   Chronologically, from the Oxford years and onwards, much remains to be done. Responsibility for assembling the information and commentary presented here, and for any inaccuracies, lies with me the author: Roger Kelly roger@kosmoid.net

 

Sir George Thomas Beilby FRS  flow of metals

Sir James Arnot Hamilton  Concorde design

 

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