Approved mineral surveys of the principal mining districts in Boulder County, Colorado / by George S. Clason, Denver, 1916. 1916.
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Hannum, Phil,
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Schmoll, Hazel Marguerite
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Miss Schmoll studied at Chicago under Professor Cowles, who is credited with being the originator of the ecology movement. From the description of School records, 1906-1934. (Boulder Public Library). WorldCat record id: 427365746 Miss Schmoll worked at the State Historical and Natural History Museum and was State Botanist. From the description of State Historical and Natural History Museum papers, . (Boulder Public Library). WorldCat record id: 427366033 ...
Clason Map Co.
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Clason, George S. (George Samuel), 1874-1957
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