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Volume 78, Number 3-4 (1971)

Issue cover date: January 1972

Front Matter

Research

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A Further Note on Formica Exsectiodes Forel
K. M. Quick and C. L. Christensen

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Petrified Lepidophloios Specimens from Iowa Coal Balls
Nancy Brotzman and Jeffry Schabilion

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Primary Productivity in Lake Red Haw, Lucas County, Iowa
Phyllis J. Kingsbury, Lynda D. Corkum, and Paul D. Krause

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Chronic Centrifugation of Labyrinthectomized, Growing Turtles
John O. Rice, Charles C. Wunder, Friedrich C. Diecke, Mary M. Clark, Randall K. Kesterson, Jackquelyn G. White, and Kathy M. Whiteside

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Phyllopods of Missouri
C. Thomas Wiltshire and Donald H. Hazelwood

Back Matter