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Starkville, Colorado: Digging coal half mile underground (vein 4 ft. t...
H64972 U.S. Copyright Office. Copyright 1905 by H.C. White Co. No. 12425. No copyright renewal. This record contains unverified, old data from caption card. Caption card tracings: Geogr.; Mines; Industry Coal; Ph. Ind.
White blood corpuscles, exhibiting amoeboid movements in the external ...
Illus. in: Report to the surgeon general, of the United States Army, on certain points connected with the histology of minute blood vessels / Brevet Lieutenant Colonel J.J. Woodward, Assistant Surgeon, U.S. Arm... More
Miners pushing an "empty" (sides of tunnel show depth of coal vein), c...
Two miners pushing coal car. H92084 U.S. Copyright Office. No. 13220.
The (sometimes) rushing Crystal River, one of Colorado's noted trout s...
Title, date and keywords based on information provided by the photographer. Credit line: Gates Frontiers Fund Colorado Collection within the Carol M. Highsmith Archive, Library of Congress, Prints and Photograp... More