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Collection: Calvin Geological Photographs
Browse Items (748 total) for Calvin Geological Photographs
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Botanical Laboratory, south room, Old Science Hall
Old Science Hall on the University of Iowa campus, Iowa City
Granite boulder belonging to Iowan Drift, Mason City, Iowa, late 1890s or early 1900s
Illinoian boulders, late 1890s or early 1900s
Child near boulder in field, Newton Township, Iowa, late 1890s or early 1900s
Terrace of Wisconsin age near Lansing, Iowa, late 1890s or early 1900s
Kames, Thornton, Iowa, late 1890s or early 1900s
Located northwest of Thornton.
Initial steps in the formation of gulches in loess, Graham Township, Iowa, late 1890s or early 1900s
Located in section 20 of Graham Township.
Men and boys surrounding “Jumbo” artesian well, Belle Plaine, Iowa, late 1890s or early 1900s
Artesian well/Jumbo well, 3 ft in diameter at surface, 195 deep through fine sand and blue clay. Bored with 2 inch drill. Water broke out. pressure 35 lbs to sq in.
Boulder of Iowan age, near the southeast corner of the park, Nora Springs, Iowa, late 1890s or early 1900s
Valley of Little Sioux River north of Fox Creek, Iowa, late 1890s or early 1900s
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