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The production of cigar-leaf tobacco in Pennsylvania
Type classification of American-grown tobacco
Biological control of Cannabis sativa : a summary of the project
How cigar-tobacco production is being controlled in Connecticut
Preservation of agricultural specimens in plastics
For a beautiful America : guard against plant pests
American tobacco types, uses, and markets
Insect powder
Export fruit acts : questions and answers
Killing weeds with herbicides : student or classroom science project no. 3