Samuel Calvin Photographs

Geological picnic, Iowa, April 28, 1894

Geological Laboratory, Old Science Hall, The University of Iowa, December 13, 1899

Interurban cut with University of Iowa buildings visible on the other side of the river, Iowa City, Iowa, late 1890s or early 1900s

Iowa River high water, Iowa City, Iowa, late 1890s or early 1900s

Left to right, Leverett, Calvin, Chamberlin, Bain, and Udden, Geologists

Little Brown Church in the Vale, Bradford Congregational Church known as the &quot;Little Brown Church in the Vale&quot; located 2 miles northeast of Nashua, Iowa, July 12, 1924

Man standing next to The Sentinel, Newton Township, Iowa, late 1890s or early 1900s

Men and boys surrounding “Jumbo” artesian well, Belle Plaine, Iowa, late 1890s or early 1900s

Professor Samuel Calvin and class at the state quarry, North Liberty, Iowa, April 22, 1899

Steam Laboratory