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Three new alpine Vertigos from California
Vol 33, Page 48, Date 1919
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A new Californian Micrarionta
Vol 33, Page 53, Date 1919
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A new Cypraea from Hawaii
Vol 33, Page 92, Date 1920
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Review of the Thysanophora plagioptycha group
Vol 33, Page 93, Date 1920
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Vitrea (Paravitrea) multidentata and lamellidens
Vol 33, Page 115, Date 1920
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On certain of Links names in the Mitridae
Vol 33, Page 133, Date 1920