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Field work among the birds and mammals of the northern coast of California in 1921
Ser 4, Vol 12, Page 1
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New species of Hynobius from Japan
Ser 4, Vol 12, Page 27
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Upper Miocene lacustrine mollusks from Sonoma County, California
Ser 4, Vol 12, Page 31
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Notes on some land snails of the Sierra Nevada Mountains, with description of a new species
Ser 4, Vol 12, Page 43
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A new species of Carychium from Vancouver Island, British Columbia
Ser 4, Vol 12, Page 51
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. General Account
Ser 4, Vol 12, Page 55
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (I)
Ser 4, Vol 12, Page 73
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. New Dolichopodidae (Long-legged flies)
Ser 4, Vol 12, Page 105
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The geometrid moths
Ser 4, Vol 12, Page 113
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The tineid moths
Ser 4, Vol 12, Page 117
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Hemiptera (True bugs, etc)
Ser 4, Vol 12, Page 123
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Tenebrionidae
Ser 4, Vol 12, Page 201
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Bombyliidae (bee flies)
Ser 4, Vol 12, Page 289
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Some Coccidae from about the Gulf of California
Ser 4, Vol 12, Page 315
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Dermaptera and Orthoptera
Ser 4, Vol 12, Page 319
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. A revision of the genus Anisembia, wih description of a new species from the Gulf of California
Ser 4, Vol 12, Page 341
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. New and little known pseudoscorpions, principally from the islands and adjacent shores of the Gulf of California
Ser 4, Vol 12, Page 353
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Expedition of the California Academy of Sciences to the Gulf of Califor-nia in 1921. On chilopods and diplopods from islands in the Gulf of California
Ser 4, Vol 12, Page 389
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Melyridae (lesser flower beetles)
Ser 4, Vol 12, Page 409
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Noctuidae (moths)
Ser 4, Vol 12, Page 423
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Anthomyidae and Lonchaeidae (Kelp flies and their allies)
Ser 4, Vol 12, Page 425
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Bembicini (Digger Wasps)
Ser 4, Vol 12, Page 429
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Observations on surface distribution of marine diatoms of Lower California in 1921
Ser 4, Vol 12, Page 437
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The birds
Ser 4, Vol 12, Page 443
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Diptera from the Islands and adjacent shores of the Gulf of California
Ser 4, Vol 12, Page 457
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. Land and freshwater mollusks
Ser 4, Vol 12, Page 483
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Bees (II)
Ser 4, Vol 12, Page 529
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Expedition of the California Academy of Sciences to the Gulf of California in 1921. The spider fauna of the shores and islands of the Gulf of California
Ser 4, Vol 12, Page 561