Comparing 1817 with 1847, we mark on this subject a very gratifying change. The cultivators of science in the United States were then few — now they are numerous. Societies and associations of various names, for the cultivation of natural history, have... The Life of James Dwight Dana: Scientific Explorer, Mineralogist, Geologist ... - Page 193 by Daniel Coit Gilman - 1899 - 409 pages Full view -
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