MEMORIAL OF THEODORE BRYANT COMSTOCK 13 



lislied at that time contains many illustrations showing the application 

 of geology to engineering problems. 



After leaving Cornell he occupied several other teaching positions as 

 follows : Instructor in Shaler's Harvard Summer School of Geology, 

 1876; Professor of Mining Engineering and Physics, University of Illi- 

 nois, 1885-1889; Director Arizona School of Mines, 1891-1893; Presi- 

 dent University of Arizona, 1893-1895. 



During the period that he was engaged in teaching he also was occupied 

 with more or less field work, beginning as early as 1870, in which year he 

 went as assistant on the Morgan Expedition to Brazil. In 1876 he served 

 as assistant on the Kentucky Geological Surve} r , and in 1877 as member 

 of an expedition to the Northwest Territories, in 1877 as assistant on the 

 Arkansas Geological Survey, and following that in a similar capacity on 

 the Texas Geological Survey. In the later years of his life he gave up 

 most of his active geological work and settled in Los Angeles, California, 

 where he died on July 26, 1915. 



Doctor Comstock was a member of the following societies : Geological 

 Society of America, of which he was an original Fellow; American Insti- 

 tute of Mining Engineers, Mining and Metallurgical Society, American 

 Association for the Advancement of Science, National Geographic So- 

 ciety, National Educators' Association, Southern California Academy of 

 Science, and New York Academy of Science. He was the author of many 

 papers dealing chiefly with geological subjects, a list of which is appended. 



BIBLIOGRAPHY 



1S73. On the geology of western Wyoming. American Journal of Science, 

 third series, volume 6, pages 426-432 ; volume 7, page 151. 



1875. Geological report. Abstract. American Journal of Science, third series, 



volume 10, pages 59-60. 



1876. Remarks on the hot springs and geysers and other topics illustrating 



the scientific value of the Yellowstone Park. Proceedings of the 

 American Association for the Advancement of Science, volume 24. 

 part 2, pages 97-99. 



1876. Formation of geyserite pebbles in pools adjacent to the geysers of the 



Yellowstone Park. Abstract. Proceedings of the American Associa- 

 tion for the Advancement of Science, volume 24, part 2, page 97. 



1877. On some unexplained phenomena in the geyser basins of the Yellowstone 



National Park. Proceedings of the American Association for the Ad- 

 vancement of Science, volume 25, pages 235-239. 



1883. Notes on the geology and mineralogy of San Juan County, Colorado. 

 Transactions of the American Institute of Mining Engineers, volume 

 11, pages 165-191, map. 



1886, Supermetamorphism and volcanism. American Naturalist, volume 20, 

 pages 1006-1008. 



