
Snodgrass, R. E. How Insects Fly. Washington, GPO, 1930. 42pp, illus, 6x9.5", wrps, uncut, stapled. Reprint from the Smithsonian Report for 1929. Author is with the Bureau of Entomology, USDA. Very good.
Snodgrass, R. E. How Insects Fly. Washington, GPO, 1930. 42pp, illus, 6x9.5", wrps, uncut, stapled. Reprint from the Smithsonian Report for 1929. Author is with the Bureau of Entomology, USDA. Very good.