William Hyde Wollaston

William Hyde Wollaston: The Secretive Genius of English Science

For roughly twenty years, one man controlled England's supply of workable platinum. William Hyde Wollaston had solved the problem that had defeated everyone else — how to turn brittle, refractory platinum ore into a malleable metal ingot — and he told nobody how. The process made him rich. It also, as a by-product, made him the discoverer of two chemical elements. He was among the most inventive minds in Georgian science and remains among the least famous, largely because he preferred it that way.

One of Seventeen

Wollaston was born on 6 August 1766 at East Dereham in Norfolk, one of seventeen children of Francis Wollaston, a clergyman and amateur astronomer, and Althea Hyde. The household was comfortable and intellectually charged — a father who tracked stars, a crowd of siblings, and money enough for good schooling.

He attended Charterhouse School from 1774 to 1778, taught partly in private and remote arrangements, then went up to Gonville and Caius College, Cambridge, to study the sciences. He took an MD in medicine at Cambridge in 1793 and held a college fellowship from 1787 until his death in 1828.

Abandoning Medicine

He practised as a physician in Huntingdon from 1789, spent time at Bury St Edmunds, and moved to London in 1797. He was elected a Fellow of the Royal Society in 1793, at twenty-seven. Then, in 1800, an inheritance from his brother gave him something most scientists of the era never had: the freedom to stop earning a living. He left medicine and formed a partnership with the chemist Smithson Tennant to manufacture chemicals.

The Platinum Monopoly

The partnership's great achievement was industrial. Wollaston developed the first practical physico-chemical method for converting platinum ore into malleable ingots — a material previously almost useless because it could not be worked. He kept the process secret for about two decades, cornering the English platinum supply and accumulating a substantial fortune.

The secrecy was commercially rational and scientifically productive. The method depended on careful chemical analysis of the ore, and that analysis kept turning up things that should not have been there. In 1802 Wollaston isolated a new element from the residues and named it palladium. In 1804 he found another and named it rhodium. Two elements, discovered as the incidental output of a manufacturing process.

The Lines Nobody Followed Up

Also in 1802, Wollaston looked at sunlight through a prism and saw dark lines interrupting the spectrum. He recorded them twelve years before Joseph von Fraunhofer's celebrated observation. Those lines are the signatures of the elements in the sun's atmosphere, and their eventual interpretation created astrophysics — the discovery that the chemistry of distant stars is readable from Earth. Wollaston saw them first and did not pursue them, one of the more consequential missed opportunities in the history of physics.

His optical work was otherwise prolific and practical. In 1807 he invented the camera lucida, a drawing aid incorporating the Wollaston prism that superimposes a view of a scene onto the artist's paper. In 1809 came the reflecting goniometer for measuring the angles between crystal faces — a device that turned crystallography into a quantitative science. In 1812 he produced the meniscus lens for camera use, improving image quality by reducing distortion.

Electricity, and Another Near Miss

In 1801 Wollaston demonstrated that electricity produced by friction was identical in kind to that produced by the voltaic pile — a foundational unification at a moment when the two phenomena were widely treated as different things. He designed a battery whose zinc plates could be lifted clear of the acid to slow their dissolution.

Late in his career he accidentally discovered electromagnetic induction, roughly a decade before Michael Faraday. His demonstration of a motor at the Royal Society failed, and the credit — and the transformative development of the principle — went elsewhere.

The Miscellaneous Genius

The range of the rest is startling. His 1805 Bakerian Lecture defended Leibniz's principle of *vis viva*, an ancestor of the conservation of energy. In 1814 he made the first estimate of carbon's atomic weight, putting it at 12 — the value still in use. That same year he coined the term "bicarbonate" and sat on a royal commission recommending adoption of the imperial gallon; in 1819 he served on another and opposed adopting the metric system. He devised the cryophorus, a glass apparatus demonstrating rapid freezing by evaporation, and served on the Board of Longitude from 1818 until his death.

He was not infallible. When Anders Gustav Ekeberg discovered tantalum in 1802, Wollaston pronounced it identical to columbium; Heinrich Rose later proved them distinct and renamed columbium niobium in 1846. His 1811 paper "On the non-existence of sugar in the blood of persons labouring under diabetes mellitus" concluded, wrongly, that sugar reached the urine through the lymphatic channels while bypassing the blood — the honest error of methods too insensitive to detect glucose in diabetic serum.

Honours

Recognition came steadily: the Copley Medal in 1802, the Croonian Lecture in 1809, Bakerian Lectures in 1802, 1805, 1812 and 1828, and a Royal Medal in the last year of his life. He was elected to the Royal Swedish Academy of Sciences in 1813 and made a foreign honorary member of the American Academy of Arts and Sciences in 1822. Within the Royal Society he served as Secretary from 1804 to 1816, held the presidency briefly in 1820, and was vice-president from 1820 until 1828.

The Vanishing

Wollaston died in London on 22 December 1828 and was buried in St Nicholas's Churchyard, Chislehurst. His name survives on a medal, a lunar crater, a mineral, a form of fine platinum wire, and an improbable scatter of geography — a 2,681-square-kilometre lake in Saskatchewan, islands off Chile, a stretch of northeast Greenland, a Canadian peninsula.

Yet historians have long noted that he is markedly less renowned than contemporaries of comparable stature — Thomas Young, Humphry Davy, John Dalton. The reasons are of his own making. He published unconventionally, sometimes anonymously. His papers stayed private and inaccessible. His notebooks went missing for more than a century, resurfacing at Cambridge only in the late 1960s, and the first comprehensive biography, by Melvyn Usselman, appeared in 2015 after more than thirty years of research. The man who kept his best process secret for twenty years managed, in the end, to keep much of himself secret for nearly two hundred.