by Tomas E. Snyder

G.P.O. 1915 Bulletin / U.S. Department of Agriculture, Division of Entomology no. 94, pt. 2 . Insects injurious to forests and forest products

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Government Printing Office 1911 Bulletin / U.S. Department of Agriculture, Division of Entomology no. 64

IX : Contents and index

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by A.D. Hopkins

G.P.O. 1909 U.S. Department of Agriculture, Bureau of Entomology / L.O. Howard . Bulletin ; no. 83, pt. 1 . Practical Information on the Scolytid beetles of North American forests ; 1

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prepared under the direction of the entomologist

Government Printing Office 1904 Bulletin / U.S. Department of Agriculture, Division of Entomology no. 44

VII

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prepared under the direction of the entomologist by Nathan Banks

Govt. Print. Off. 1898

pt. 6

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Government Printing Office 1890- Bulletin / U.S. Department of Agriculture, Division of Entomology no. 22, 23, 32

[1890] , [1891] , [1894]

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Government Printing Office 1888 Bulletin / U.S. Department of Agriculture, Division of Entomology No. 19

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U.S. Department of Agriculture. Division of Entomology

Government Printing Office

U.S. Department of Agriculture, Division of Entomology

Government Printing Office