Front Matter
p. 0
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The Role of Fitness in Evolution
McAtee, W. L. pp. 237-241
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Book Notices
p. 241
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The Postulated Resemblance of Natural to Artificial Selection
McAtee, W. L. pp. 242-252
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Pangoniinae of Utah (Tabanidae: Diptera)
Rowe, J. A.; Knowlton, George F. pp. 253-260
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Several New Silurian Cephalopods and Crinoids, Chiefly from Ohio and Hudson Bay
Foerste, Aug. F. pp. 261-276
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Notes on the Carabidae of Ohio. I, Tetragonderus Fasciatus Hald., Bembidium Laevigatum Say, and Geopinus Incrassatus (Dej.) in Ohio (Coleoptera-Carabidae)
Everly, Laura Wadsworth; Everly, Ray Thomas pp. 277-283
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Book Notices
p. 283
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Illustrations of External Anatomy Silpha Americana Linn. (Silphidae, Coleoptera)
Blackburn, Norris D. pp. 284-299
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Book Notices
pp. 300-306
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Back Matter
p. 999
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