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The red spider on cotton. (Tetranychus bimaculatus Harvey)
Aphids on tobacco : how to control them
How to control fleas
The plant disease situation
Feeding birds in winter
The fight against plant dieseases in 1933
Save grain by controlling pantry pests! : fact sheet
The occurrence of bee diseases in the United States. (Preliminary report.)
METRIC AND GRAIN HANDLING
Winter sports