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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
Boulder field in Iowan area, Williamstown, Iowa, June 19, 1926
Located 3/4 mile South of Williamstown, East side of road, near middle of line between sections 13, Richland Twp., and 18, Dresden Twp.
Boulder field, Newton Township, Iowa, late 1890s or early 1900s
Boulder of Iowan age, near the southeast corner of the park, Nora Springs, Iowa, late 1890s or early 1900s
Boulders from the marginal moraine of the Wisconsin Drift Sheet, Clear Lake, Iowa, late 1890s or early 1900s
Boulders of disintegration showing effects of weathering on granite, between Loveland and Estes Park, Colorado, late 1890s or early 1900s.
Boulders on Iowan Plain, Independence, Iowa, late 1890s or early 1900s
Located east of Independence.
Bouquet of sea lilies, crinoids dredged by the Bahama Expedition, late 1890s or early 1900s
Brachiopods and Orthidae fossils
Branch of erosional lines on the dissected Kansan Drift Plain, Afton, Iowa, early 1890s or late 1900s
Located southwest of Afton, Iowa.