Washington: G.P.O., 1902.

Washington, 189-?

Washington, D.C. :U.S. Dept. of Agriculture, Bureau of Chemistry,1911. | U.S. Department of Agriculture, Na

Washington, Govt. print. off., 1911.

Washington, D.C.: U.S. Dept. of Agriculture, 1914.

issue of the Circular of the United States Department of Agriculture, Division of Botany

Washington, [D.C.]: U.S. Dept. of Agriculture, 1903.

Washington: G.P.O., [1903]

Washington, D.C.: U.S. Dept. of Agriculture, 1922.