viii LIST OF PLATES 



XIII. Sir Humphry Davy, from a portrait by Sir Thomas Lawrence, in the 

 poMession of the Royal Society . . . To face page 208 



\I\ John Dalton, from a portrait by B. R. Faulkner, in the possession 

 of the Royal Society To face page 224 



1 Faraday, from a portrait by A. Blaikley, in the possession 

 of the Royal Society ... . To face page 240 



\\I. Lord Kelvin. Photogravure by Messrs. Annan & Co. from a 

 photograph by Messrs. Dickinsons, New Bond Street. 



To face page 256 



Photogravure by Messrs. Elliot Fry, London. 



To face page 272 



X \ ill. Charles Darwin. Photogravure by the Oxford University .Press from 

 a painting by Walter W. Ouless, R.A. . To face page 288 



XIX. The present Meeting-room in the Apartments of the Royal Society, 

 Burlington House To face page 296 



XX. The Principal Library in the same Apartments . To face page 304 



