Dusting cotton from airplanes Dusting cotton from airplanes / nork Coad, B. R.

Recent experimental work on poisoning cotton-boll weevils / nork Coad, B. R.

Feeding habits of the boll weevil on plants other than cotton / nork Coad, B. R.

The rules for poisoning the cotton boll weevil The rules for poisoning the cotton boll weevil / nork Coad, B. R., Cassidy, T. P.

Dusting machinery for cotton boll weevil control Dusting machinery for cotton boll weevil control / nork Johnson, Elmer, Coad, B. R.

Cotton boll weevil control by the use of poison / nork Coad, B. R., Cassidy, T. P.

Insect injury to cotton seedlings / nork Coad, B. R., Howe, R. W.

Dusting cotton from airplanes / nork Coad, B. R., Johnson, E., McNeil, G. L.

Dusting machinery for cotton boll weevil control / nork Johnson, Elmer

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