Front Matter
p. 0
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The Journal Changes Editors and Managers
p. 1
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Species Isolation and a Proglacial Lake in Southern Ohio
Wolfe, John N. pp. 2-12
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Book Notices
p. 12
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Quantitative Effects of Vitamin A Deficiency on the Spinal and Sympathetic Ganglia
Setterfield, H. E. pp. 13-19
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Book Notices
p. 19
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Some New Spiders from Ohio
Barrows, W. M.; Ivie, Wilton pp. 20-23
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Limnological Studies of Western Lake Erie. III, Phytoplankton and Physical-Chemical Data from November, 1939, to November 1940
Chandler, David C. pp. 24-44
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Book Notices
p. 44
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Studies in the Biology of the Leech. V, Behavior Following Nerve Cord Transection
Miller, John A. pp. 45-52
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Back Matter
p. 999
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