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Rubber and resin content of native and introduced plants of Canada
The pear leaf-worm
White-pine blister rust in western Europe
Nosema-disease
Proceedings of the third southern conference on forest tree improvement held at New Orleans, Louisiana, January 5 and 6, 1955
The western cabbage flea-beetle
Sugar-cane culture for sirup production in the United States
Original monthly record of observations at LaSalle, Illinois
Acetate selected Bacillus thuringiensis and the method of use
Canker-worms