Circular.

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Corporate Author
Canada. Division of Entomology.
Language(s)
English
Published
Ottawa, 1913-22.
Subjects
Beneficial insects > Canada.
Insect pests > Canada.
Note
No. issued by the division under a variant name: Entomological Branch.
Physical Description
no. : ill. ; 25 cm
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Item Link Original Source
Full view   no. 1-11 Purdue University
Full view   no.1-15 1918-1921 University of Michigan
Full view   1919-1928,1931 Purdue University