Melvin, Roy and Raymond C. Bushland: “Effects of Acidity, Alkalinity and Moisture Content of the Soil on Emergence of Cochliomyia americana C. & P.” (1938) and “The Nutritional Requirements of Screwworm Larvae” (1940) , 1938 - 1940

File — Box: 13, Folder: 326

Identifier: VI.C

Staff Only

Scope and Contents

From the Collection:

Owen Hugh (O.H.) Graham worked as an entomologist with the U.S. Department of Agriculture (USDA) from 1939-1942 and from 1946 until his retirement in 1984. During this time he held several positions with the USDA, primarily in Texas, and was involved in the screwworm eradication program. The collection includes reports, publications, research data, correspondence, memoranda, meeting materials, photographs, and ephemera. While the majority of the materials are in English, there are some items in Spanish, French, and Portuguese.

The bulk of the materials relate to the screwworm eradication program in the Southwestern United States. Materials pertaining to several screwworm research projects can be found in Correspondence (Series I), Memoranda (Series II), Research Data (Series IV) and Reports (Series V). The reports pertain to screwworm research and the eradication program, in the United States and in other parts of the world such as Mexico and North Africa. Graham acquired the reports over the years while working with screwworms at Kerrville, Texas, and Mission, Texas. Of note in this series are the weekly and monthly status reports on the success of the southwestern United States eradication effort.

Writings are found in Series VI. This series consists of manuscripts, proposals, publications, newsletters, and clippings. A significant number of clippings are from The San Antonio Express-News and the Cattleman magazine.

Public Information materials (Series VII) include items produced by the USDA, the Comision Mexico-Americana, and the Texas Agricultural Extension Service for public education on screwworm eradication efforts. In this series, one can find publications, bulletins, press releases, and brochures regarding the eradication efforts. Meeting materials can be found in Series III.

The majority of the photographs (Series VIII) are circa 1960 and were taken by Orville Gorman Babcock at the Sebring, Florida, facility. They illustrate equipment and methods used in the rearing of screwworm flies.