1. A preliminary catalogue of the parasites contained in the collections of the United States Bureau of Animal Industry, United States Army Medical Museum, Biological Department of the University of Pennsylvania (Coll. Leidy) and in Coll. Stiles and Coll. Hassall Author(s): Stiles, Charles Wardell, 1867-1941, authorHassall, Albert, 1862-1942, author Publication: Philadelphia : Avil Printing Company, 1894 Subject(s): Helminths -- parasitologyParasitesUnited States