APPENDIX II 305 



PENGELLY, William (1812-94), F.R.S., lecturer on 

 geological and mathematical subjects. Special interest in 

 geology of Devonshire and the exploration of Kent's Cavern, 

 Torquay, etc. 



PERRY, John (1850-1920), F.R.S. ; general treasurer, 

 B.A., 1904-20 ; held professorship of engineering, mathe- 

 matics, etc., in Japan, 1875-79, City and Guilds Technical 

 Coll., 1881-96, and Royal Coll. of Science. Electrical 

 engineer and inventor, and educational reformer. 



PITT-RIVERS, Augustus Henry Lane-Fox (1827-1900), 

 F.R.S., saw service in Crimean War ; lieut.-general, 1882 ; 

 formed collection illustrating evolution of inventions (origina- 

 ting with weapons), presented to Oxford Univ., 1883 ; archae- 

 ologist ; explored early sites, especially in Wilts and Dorset. 



PLAYFAIR, John (1748-1819), minister of Liff and Bervie, 

 1773-83 ; professor in natural philosophy, Edinburgh 

 Univ., 1805. Geologist and mathematician. 



POTTER, Richard (1799-1886), professor of natural 

 philosophy and astronomy, Univ. Coll., London, 1841-43, 

 1844-65. Researches on mechanics, optics, etc. 



POWELL, Rev. Baden (1796-1860), F.R.S., Savilian 

 professor of geometry, Oxford Univ., 1827-60 ; theologian. 

 Researches on optics and radiation. 



PREECE, Sir William (1834-1913), F.R.S. ; K.C.B., 

 1899 ; electrician to Post Office, 1877, and chief engineer, 

 1892-99 ; president, Inst. Electrical Engineers, 1880 and 

 1893. Work on telephones and wireless telegraphy. 



PRITCHARD, Rev. Charles (1808-93), F.R.S., Savilian 

 professor of astronomy, Oxford Univ., 1870-93 ; president, 

 Royal Astron. Soc., 1866-68 ; noted preacher. 



QUETELET, Lambert Adolphe Jacques (1796-1874), 

 professor of mathematics at Athenaeum, Brussels, 1819 ; 

 director of observatory, Brussels, 1828-74 ; professor of 

 astronomy and geodesy, Brussels, 1836. Statistical and 

 geometrical investigations. 



RANKINE, William John Macquorn (1820-72), professor 

 of civil engineering and mechanics, Glasgow, 1855 ; researches 

 in molecular physics. 



