part 1] AlS^NIYERSARY ADDRESS OF THE PRESIDENT. lili 



ERif^ST Heinrich Oskar Kasimir Weiistschenk was iDorn on 

 April 6th, 1865, at Esslingen in Wiirtemberg. He was first 

 Privatclozent and afterwards for man}^ years Professor of Petro- 

 grapliy in the Universit}'^ of Munich. He published numerous 

 memoirs on mineralogy and petrology, but his most distinctive 

 researches were on the subject of the mode of occurrence and 

 genesis of graphite, in the course of which he contributed important 

 additions to our knowledge of the deposits of Bavaria, Bohemia, 

 and the Alps, as well as Ce3'lon. He was also especially interested 

 in rocks and minei'als i-ich in magnesia. He is best known, how- 

 ever, for his text-books on petrology, which are clearly written and 

 well illustrated. The * Introduction to the Petrological Micro- 

 scope ' and the ' Rock-forming Minerals ' have been translated into 

 English by R. W. Clark. He also published the ' Principles of 

 Petrology ' in two volumes, a general and a special part. The 

 former is a masterpiece of lucid exposition. The views expressed 

 are sound and at the same time show considerable originality. 

 The work has been translated into English by Johannsen. He 

 was elected a Foreign Correspondent of the Society in 1912, and 

 died in 1921. [J. W. E.] 



Although he was never a Fellow of our Society, it would be 

 impossible to pass without mention the name of one so well known 

 to geologists as Benjamix Harrisoist. Born in 1837, second son 

 of a grocer at Ightham in Kent, a business which had been in the 

 family for 150 years, and was afterwards inherited and carried on 

 by him, he early developed a taste for geology and coUectmg 

 fossils, and maintained his interest and zeal to the last. He 

 first attracted attention b}^ the identification of Roman remains 

 at Ightham, and, shortly after, his attention was drawn to flint 

 implements hj the discovery of these relics of ancient man at 

 Abbeville, and the controversy which arose therefrom. This led 

 him to collect similar remains in his own district, of which he 

 amassed a large collection, and made him known to men of eminence 

 in that branch of knowledge. With Lord Avebury, Prof. Prestwich, 

 and Sir John Evans he corresponded, and by them he was encouraged 

 in his investigations. An indefatigable explorer of his district, of 

 which he had an unrivalled knowledge, his memory will live mainl}^ 

 by his discovery of ' eoliths,' and the controversy which raged over 

 the reality of the human origin of these alleged evidences of human 

 activity in long-past ages. His services to Geology were recog- 

 nized by the award of the Wollaston Fund in 1899. 



