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Box 22

 Container

Contains 32 Results:

General view showing height of cotton at first poisoning, 1922

 Item — Box: 22, item: 3418
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

close up showing height of cotton at first poisoning, 1922

 Item — Box: 22, item: 3419
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