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The genus Notonecta of the world (Notonectidae-Hemiptera)
Vol 21, Page 5
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The genus Notonecta of the World (Notonectidae-Hemiptera)
Vol 21, Page 5
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A study of the genus Brachymetra (Hemiptera-Gerridae)
Vol 21, Page 221
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A new species of lizard from Mexico
Vol 21, Page 257
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Observations on the courtship of turtles
Vol 21, Page 269
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A new Bassariscus from the Lower Pliocene of Nebraska
Vol 21, Page 273
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Cephalopods of the Pierre formation of Wallace County, Kansas, and adjacent area
Vol 21, Page 289
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A new Megasecopteron from the carboniferous of Kansas
Vol 21, Page 365