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Directions for collecting flowering plants and ferns
Maintenance of the fur supply
Government forest work
The migration of North American birds
The pickleworm : how to control it on cucumber - squash - cantaloup - and other cucurbits
Flight speed of birds
Blight of pears, apples, and quinces
How to control bed bugs
Extension work in plant pathology, 1923
Notes on the habits of certain coprophagous beetles and methods of rearing them