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12. Diseases of poultry
13. Insect pests of stored grain and grain products, identification, habits and methods of control
14. Important tree pests of the northeast: a revision of Tree pest leaflets nos. 1-50
15. Diseases of fruits and hops
16. Outline of diseases of cereal and forage crop plants of the northern part of the United States
17. Forest pathology
18. Insects of citrus and other subtropical fruits
19. Forest insects: a text-book for the use of students in forest schools, colleges, and universities, and for forest workers
20. An outline of forest pathology
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