246 RECORD OF THE ROYAL SOCIETY 



Presented by 

 John Huxham, M.D., F.R.S. (1692-1768). J. C. Huxham Esq., F.R.S. 



Physician. Author of medical works published in Latin at Leipzig. Elected 

 F.R.S. 1739 ; contributed numerous papers on philosophical and medical subjects 

 to the ' Philosophical Transactions '. 

 By T. Rennel. 

 James Prescott Joule, F.R.S. (1818-89). A number of Fellows R.S., 1883 



Physicist. Studied under Dalton ; experimental founder of the Mechanical 

 Theory of Heat. The final determinations of ' Joule's mechanical equivalent of 

 heat' were communicated to the Royal Society in various papers. Elected F.R.S. 

 1850 ; Royal Medallist 1852 ; Copley Medallist 1860. 

 By Hon. John Collier. 



James Jurin, M.D., F.R.S. (1684-1750). Rev. W. A. Totton, 1868 



Physician to Guy's Hospital 1725-32; Pres.R.C.P. 1750. Pioneer in exact 

 physiology. Elected F.R.S. 1718; Secretary 1721-7. 

 By James Worsdale. 



Lord Kelvin (Sir William Thomson), Pres.R.S.) Subscribers, 1899 



(1824-1907). 



The most important Physicist, mathematical and experimental, of his day. 

 One of the founders of thermodynamics and pioneer in electrical science, both 

 theoretical and technical. Elected F.R.S. 1851 ; President 1890-5. (See p. 205.) 

 By W. Q. Orchardson, R.A. 



Gottfried Wilhelm Leibniz, F.R.S. (1646-1716). Dr. Wilson, 1883 



Mathematician, Physicist, and Philosopher. Contemporary and rival of Sir 

 Isaac Newton. Elected For.Mem.R.S. 1673 ; in 1675 contributed a paper to the 

 ' Philosophical Transactions'. 

 An English copy after a German original. 



John Locke, F.R.S. (1632-1704). J. Belchier, Esq., 1785 



Philosopher and Publicist, friend of Sir Isaac Newton. Elected F.R.S. 1668. 

 Secretary to the newly constituted Council of Trade 1673-5, when he collaborated 

 with Newton in the work of the Mint, including the reorganization of the 

 coinage. Commissioner of Appeals 1689-1704. 



By Sir Godfrey Kneller. 



George, Earl of Macclesfield, Pres.R.S.) ^ , . __ , ., 



(1697-1764) Macclesfield, 1754 



Astronomer. Elected F.R.S. 1722; President, 1752-64. Published the 

 Macclesfield Correspondence, mainly of Sir Isaac Newton and his companions. 

 (See p. 202.) 

 By Thomas Hudson. 



John Macculloch, M.D., F.R.S. (1773-1835). Mrs. Macculloch 



Geologist. Chemist to the Board of Ordinance 1803; Geologist to the 

 Trigonometrical Survey 1814 ; Pres. Geol. Soc. 1816-17. Published a Geological 

 Map of Scotland and a work on Scottish geology, which is now a classic. Elected 

 F.R.S. 1820. 

 By B. R. Faulkner. 



