author
C. W. (Charles Willard) Hayes
1859–1916
An American geologist and scientific administrator, he helped shape the early work of the U.S. Geological Survey and wrote practical books for field researchers. His career joined hands-on exploration with clear, useful scientific writing.
1 Audiobook
On Sulphonfluoresceïn and Some of Its Derivatives
by C. W. (Charles Willard) Hayes
About the author
Born in Granville, Ohio, Charles Willard Hayes studied at Oberlin College and later earned a doctorate from Johns Hopkins University. He joined the U.S. Geological Survey in 1887, beginning a career that linked research, mapping, and public service.
Hayes became known for his work as a geologist and later as chief geologist of the Survey. He also took part in exploration, including an expedition through the Yukon district in the early 1890s, and he wrote on subjects ranging from regional geology to economic resources.
Readers may know him best through works such as Handbook for Field Geologists, which reflects his practical, organized approach to science. After his years with the U.S. Geological Survey, he moved into private-sector work in 1911, but his reputation remained tied to the development of American geology during a formative period.