Model of an Arizona gold mine Nichols, Henry W. (Henry Windsor), 1868- creator Field Museum of Natural History. Department of Geology. contributor text book Chicago Field Museum of Natural History 1922 1922
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ENG Cover title. Signed: Henry W. Nichols. Fieldiana, Popular series, Geology, was published by Field Museum of Natural History, Dept. of Geology as Leaflet (no. 1-4, 1922-1923) and as Geology leaflet (no. 5-14, 1925-1933). The Leaflet series Arizona Geological modeling Gold mines and mining Goudmijnen Modellen TN413.A7 N5x Leaflet (Field Museum of Natural History. Dept. of Geology), no. 1 https://www.biodiversitylibrary.org/bibliography/42274 https://www.biodiversitylibrary.org/bibliography/5451 6948524 10.5962/bhl.title.5451 AZS