File Weighing apparatus for water requirements Akron, Colo. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File Meteorological instruments Supt. Grace at right. Akron, Ohio. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File Akron, Col. Water requirements station Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File Frames for shading Akron, Colo. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File I.P.E. short grass plain Akron, Colo. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File James Peak[Long is crossed out] summit 14255 1914. Colo. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File Pinus aristata P. flegilis 11,500 ft. James Peak, Colo. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Colorado Photographs » Akron, Colorado
File Evaporation averages. Chicago, Ill. Box 2 In: Henry Chandler Cowles lantern slide collection, 1898-1936 » Illinois Photographs » General