Naturalist; born in Rochester, N. Y.
, March 9, 1834; educated at Williams College and at the Harvard Scientific School, where he became assistant to Professor Agassiz
in 1854; was Professor
of Natural Sciences at Rochester University in 1860-65; manager of gold-mines in Montana
in 1866-69; travelled extensively in various parts of the world, making large and valuable cabinets of mineralogy and geology, which have been distributed among universities, colleges, and schools throughout the United States
He was naturalist to the United States
expedition to Santo Domingo
in 1871, and a member of many geological and zoological societies.