The Online Books Page

Online Books by

P. W. Claassen

(Claassen, P. W. (Peter Walter), 1886-1937)

Books from the extended shelves:

• Claassen, P. W. (Peter Walter), 1886-1937: A catalogue of the Plecoptera of the world (Cornell University, 1940) (page images at HathiTrust; US access only)
• Claassen, P. W. (Peter Walter), 1886-1937: A catalogue of the Plecoptera of the world. (The University, 1940) (page images at HathiTrust; US access only)
• Claassen, P. W. (Peter Walter), 1886-1937: A monograph of the Plecoptera or stoneflies of America North of Mexico. By J.G. Needham and P.W. Claassen. (Entomological Society of America, 1925), also by James G. Needham (page images at HathiTrust)
• Claassen, P. W. (Peter Walter), 1886-1937: Plecoptera nymphs of America (north of Mexico) (Pub. for the Thomas Say Foundation by C.C. Thomas, 1931) (page images at HathiTrust)
• Claassen, P. W. (Peter Walter), 1886-1937: Studies in Kansas insects; a treatise descriptive of the more common species. (Kansas state printing plant, 1917), also by University of Kansas. Department of Entomology, William Dewitt Field, Walter Housley Wellhouse, P. B. Lawson, Clarence Hamilton Kennedy, and Raymond Hill Beamer (page images at HathiTrust; US access only)
• Claassen, P. W. (Peter Walter), 1886-1937: Studies in Kansas insects : a treatise descriptive of the more common species. (Lawrence, 1917), also by Raymond Hill Beamer (page images at HathiTrust)
• Claassen, P. W. (Peter Walter), 1886-1937: Typha insects: their ecological relationships ... ([Ithaca], 1921) (page images at HathiTrust)

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