The name was first given by Sir John Herschel to an apparatus for measuring the heating effect of solar rays (Edin.
His bust, by the same sculptor, stands opposite that of Sir John Herschel in the hall of St John's College, Cambridge.
Along with Sir John Herschel and George Peacock he laboured to raise the standard of mathematical instruction in England, and especially endeavoured to supersede the Newtonian by the Leibnitzian notation in the infinitesimal calculus.
The latter was struck by the coincidence, and mentioned it to the Board of Visitors of the Observatory, James Challis and Sir John Herschel being present.
For 1824 (part 3, pp. 1-412) will be found a description by Sir John Herschel and Sir James South of the equatorial telescope which they employed in their measurements of double stars.
The treatises on physical geography by Mrs Mary Somerville and Sir John Herschel (the lattewritten for the eighth edition of the Encyclopaedia Britannica) showed the effect produced in Great Britain by the stimulus of Humboldt's work.
There he remained till 1855, when he succeeded Sir John Herschel as Master of the Mint, a post he held until his death on the 16th of September 5869.