2 pages regarding an insect specimen sent for examination
May 7, 1907; April 30, 1907
Cook, O.F.. Letter from O.F. Cook, Bionomist in Charge, Bureau of Plant Industry, and C.L. Marlatt, Acting Chief of Bureau, to Dr. Paul Osterhout, regarding Yellow Fever research. 1907. From Rice University http://hdl.handle.net/1911/22131.
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