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The fossil pit-vipers (Reptilia: Crotalidae) of North America
Vol 12, Page 31
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Analysis of the herpetofauna of Baja California, Mexico
Vol 12, Page 47
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Snakes of the islands in the Gulf of California, Mexico
Vol 12, Page 67
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A new race of Dipodomys and a new race of Thomomys from Arizona
Vol 12, Page 99
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A new race of wood rat (Neotoma) from the gulf side of Central Baja California, Mexico
Vol 12, Page 287
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The marine molluscan fauna of Guadalupe Island, Mexico
Vol 12, Page 319
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A new mollusk from San Felipe, Baja California
Vol 12, Page 333
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A new race of pocket gopher (Thomomys) from San Fernando Mission, Baja California, Mexico
Vol 12, Page 407
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Differentiation of the Southwestern tortoises (genus Gopherus), with notes on their habits
Vol 12, Page 441