The North American dragonflies of the genus Aeshna
By: by E. M. Walker
Series: Toronto University. Biological series -- no. 11
Publisher: University of Toronto Library
Published: 1912
Place of publication: Toronto, Ont
Language: eng
Number of pages: 213
Subjects: Dragonflies.
Notes: Plates accompanied by guard sheets with descriptive letterpress.

Errata slip inserted at front.

Bibliogr.

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