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Box 24

 Container

Contains 31 Results:

Shirly cut D unpoisoned plat from ground showing 2nd picking, 1922

 Item — Box: 24, item: 4709
Content Description From the Collection: Collection of images in glass and film negative format, produced by the U.S. Department of Agriculture (U.S.D.A.) at its branch laboratory at Tallulah, Louisiana, under the direction of entomologist B.R. Coad. The images document the U.S.D.A.'s boll weevil eradication experiments using first lead arsenate, and then calcium arsenate. "Methods of applying calcium arsenate by air and by airplane and by ground machines were worked out at Tallulah. Many investigations were carried on there in the...
Dates: Other: 1922