File Trillium grandiflorum. Otis, Ind. Huntington Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Indiana Photographs » Otis, Indiana
File Beech -- Maple forest, Otist, Indiana. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Indiana Photographs » Otis, Indiana
File Beech -- Maple forest on clay -- valparaino moraine, Otis, Indiana., May 30, 1910 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Indiana Photographs » Otis, Indiana
File Gully erosion in Valparaiso maraine formerly beech-maple forest, Otis, Indiana., May 30, 1910 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Indiana Photographs » Otis, Indiana
File Bot. 36 Door Co. Wis., 1919 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Wisconsin Photographs » General
File Bot. 36 1919. Europe Lake. Door Co. Wis., 1919 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Wisconsin Photographs » General
File Class at noon day rest. Door Co. Wisc. 191 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Wisconsin Photographs » General
File Door Co. Wis., 1919 Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Wisconsin Photographs » General