part 1] ANNIVERSARY ADDRESS OF THE PRESIDENT. lv 



of research. Van Hise remained connected with the University 

 of Wisconsin throughout his career, being Professor, in succession, 

 of Metallurgy, Mineralogy, and Geology, and since 1904 President 

 of the University. From 1883 he had been attached also to the 

 United States Geological Survey, and he was engaged from time to 

 time in many other scientific activities. 



The direction of his original researches was determined naturally 

 by his geographical situation, and the study of the pre-Cainbrian 

 region of Lake Superior became his life-work. He produced 

 numerous important memoirs on different districts and formations, 

 and in 1911 a Monograph of the United States Geological Survey, 

 written by Van Hise in collaboration with his colleague Prof. Leith, 

 gave the first complete account of the geology of the Lake Superior 

 region as a whole. A large amount of research of a different 

 though related kind is embodied in the elaborate ' Treatise on 

 Metamorphism ' which appeared in 1904. 



Van Hise's eminence as a geologist was recognized by honorary 

 degrees from the Universities' of Chicago, Yale, and Harvard, and 

 he was elected a Foreign Correspondent of this Society in 1914. 

 The War diverted his energies into a new channel. He took the 

 lead in mobilizing all the resources of his University in the service 

 of the country, and himself laboured assiduously in Food Admini- 

 stration and other emergency work. He died on November 19th, 

 1918, aged 61. [A. H.] 



Prof. Samuel Wendell Williston, who was elected a Foreign 

 Correspondent in 1902, was a distinguished palaeontologist who 

 added much to our knowledge of the fossil reptiles of the Cre- 

 taceous and Permian formations of North America. Born at 

 Boston on July 10th, 1852, he accompanied his parents when a 

 child to the newly-founded State of Kansas, and after completing 

 his course at the public school he entered the Kansas Agricultural 

 College. There he pursued medical studies, and graduated as 

 Master of Surgery in 1875. He became interested in geology 

 through the teaching of Prof. B. F. Mudge. who was then in- 

 vestigating the Cretaceous formations of Kansas, and he soon 

 attracted the notice of Prof. 0. C. Marsh, of Yale, who engaged 

 him as assistant for three seasons in collecting fossil vertebrata in 

 the State. He afterwards accompanied Prof. Marsh to Yale, where 

 he not only continued his palaeontological work, but also proceeded 

 with medical studies which resulted in his graduating as M.D. in 



