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The fowl tick. (Argas miniatus Koch)
Ice on wheels
Pinyon needle scale
American medicinal leaves and herbs
Cotton or weevils
Observations on recent cases of mushroom poisoning in the District of Columbia
The Mediterranean fruit-fly. (Ceratitis capitata Wiedemann)
The apple maggot or "railroad worm." (Rhagoletis [Trypeta] pomonella Walsh.)
Seed-eating mammals in relation to reforestation
Foul brood among bees