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John D. Custance

John D. Custance is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand John D. Custance rather than just read about it. In short: John Daniel Custance FCS FRAS (c. 1842 – 14 December 1923) was an agricultural scientist, founder of Roseworthy College, South Australia, but was sacked by a Minister with whom he had mutual antipathy. History Custance was a Professor of Agricultural Science at the Royal Agricultural College, Cirencester, and had been for a time appointed to the Imperial College, Japan.

John D. Custance — main illustration
John D. Custance — illustration

Key takeaways

  • John D. Custance belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect John D. Custance to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of John D. Custance from memory before moving on to harder problems.

Reference excerpt

John Daniel Custance FCS FRAS (c. 1842 – 14 December 1923) was an agricultural scientist, founder of Roseworthy College, South Australia, but was sacked by a Minister with whom he had mutual antipathy.

History Custance was a Professor of Agricultural Science at the Royal Agricultural College, Cirencester, and had been for a time appointed to the Imperial College, Japan. The South Australian Government was concerned about the declining productivity of soils in the colony, where wheat had been grown for less than fifty years. Early in 1881 Sir Arthur Blyth, South Australia's Agent-General in England was charged with finding a suitable person to fill a newly established position of Professor of Agriculture with the University of Adelaide He selected Custance, who in June 1881 was appointed at a salary of £800 per year. It was envisaged that an institution combining the functions of an Experimental Farm and Agricultural College be established. To this end, Custance, the Commissioner for Crown Lands Alfred Catt, Samuel Davenport and Sir Robert Dalrymple Ross chose a property near Smithfield, which had the merits of being close to the city and a railway station, but their choice was overruled on the grounds the land was too good, and that more useful experiments could be made on land that had been exhausted by wheatgrowing, and the property purchased in 1882 was Olive Hill Farm, of 720 acres (290 ha) at Kangaroo Flat, 3 miles (4.8 km) west of Roseworthy. He arrived unaccompanied, in late July on the s.s. Malwa which left Britain on 1 June. He started his researches immediately, starting with visits to farms in the various wheatgrowing districts in the colony, but the Agricultural College did not get under way until 1884, and Custance was appointed Honorary Principal, but was hampered in his work by an unwillingness of Parliament to allow him more staff. Though an excellent teacher and researcher and an able administrator, Custance was by all reports an obstinate and irascible man ("Professor Crusty" was a nickname), and lacked the subtlety which might have won him more battles. Previous ministers with the portfolio Commissioner of Crown Lands and Immigration (Alfred Catt, Jenkin Coles and Thomas Playford) seemed to have coped with his obstinacy, but James Henderson Howe was clearly more interested in maintaining the upper hand than a working relationship. The tipping point came at examination time when Custance requested two examiners and Howe sent three. Nobody would back down and Custance resigned his (honorary) position as Principal on 8 December 1886. Howe thereupon gave Custance three months' notice of the termination of his appointment as Professor. To give vent his displeasure, Howe refused to attend the graduation ceremony, where he was due to present certificates to successful students. Henry Hewitson McMinnies (26 September 1812 – 25 November 1887), a Cirencester graduate, was appointed his successor in March 1887. He arrived in June, but was too ill to take up his duties on 1 July, resigned and returned to England, where he died from cancer of the tongue and throat. His trips and salary were paid by the South Australian Government, and a generous gratuity beside. By this time Howe was no longer a Cabinet member, and Custance could easily have been reappointed with minimum loss of face, but that was not to be; rather they appointed Professor William Lowrie, with F. H. Molesworth acting while Lowrie came out from England. Around this time Custance returned to England with his family, and was in London early in 1888. Their third son was born at Ongar, Essex; they moved to the Isle of Wight before returning to South Australia. Lowrie served for 13 years, then left in 1903, protesting that he was not receiving as high a salary as Custance, and was followed by Professor Towar. Custance and his family returned to South Australia on the Persic around 27 April 1906, and received considerable recognition for the part he had played in the progress of agriculture in the State. He worked for a time at J. H. Angas's estates "Broadview" at Georgetown, South Australia, then "Collingrove", near Angaston. At a later Speech Day, mention was made of the successful careers that many of Custance's students had made in agriculture. In 1923 he wrote a series of articles for The Observer on the history of agriculture in the State. His adventurous son Frederic perished on the Broken Hill track, and he himself died at his home in Black Forest, South Australia at the end of the same year.

Family John Daniel Custance (c. 1842 – 14 December 1923) married Edith Mary Fowler (c. 1867 – 22 June 1940) of Gawler on 13 August 1883

John Leslie Custance (29 July 1884 – ) was born at Roseworthy, married Gladys Marion Kentish on 19 July 1919. daughter married P. C. Ross, lived at Lower Mitcham Francis H. Custance (6 June 1887 – ) married Violet V. Jarmyn of Mallala on 18 February 1938. Frederic Cyril Custance (c. May 1890 – 3 June 1923) married Edith Violet Barnet, daughter of William Barnet of The Bunyip, Gawler, on 21 February 1916. Born in Ongar, Essex, he was a Corporal with the Australian Flying Corps during World War I. He died near Olary, South Australia.

Recognition It is likely that the Electoral district of Custance was named for him.

References

External links History of South Australian Agriculture (SA Government)

Illustrations

John D. Custance: Professor Custance, first Principal of Roseworthy College, c. 1910
Professor Custance, first Principal of Roseworthy College, c. 1910

Worked examples

Example 1 — a first encounter with John D. Custance

Start with the simplest possible case. Write down what John D. Custance claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to John D. Custance before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about John D. Custance ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of John D. Custance

In research
John D. Custance appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses John D. Custance in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
John D. Custance is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1842 births, 1923 deaths, Australian agronomists, so understanding it makes those chapters shorter.
In everyday life
Look for John D. Custance outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study John D. Custance in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what John D. Custance means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain John D. Custance out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is John D. Custance in simple terms?

John Daniel Custance FCS FRAS (c. 1842 – 14 December 1923) was an agricultural scientist, founder of Roseworthy College, South Australia, but was sacked by a Minister with whom he had mutual antipathy. History Custance was a Professor of Agricultural Science at the Royal Agricultural College, Ciren…

Why does John D. Custance matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study John D. Custance?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on John D. Custance.

Tags

  • 1842 births
  • 1923 deaths
  • Australian agronomists
  • Australian educational theorists
  • Australian scientists

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