Front Matter
pp 0
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A Second Experiment in Self-Instruction in General Biology
Kormondy, Edward J. pp 549-553
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Book Notice
pp 553-553
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Studies of the Gyponinae : A Synopsis of the Genus Hamana Delong (Homoptera: Cicadellidae)
DeLong, Dwight M.; Freytag, Paul H. pp 554-569
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Book Notice
pp 569-569
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Host Range of the Erysiphaceae of Ohio
Ellett, C. Wayne pp 570-581
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A New Locality Record for the American Brook Lamprey, Lampetra Lamottei (Lesueur) in Ohio
Zura, Richard A.; Scothorn, Linda B. pp 581-581
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Lake Arkona-Whittlesey and Post-Warren Radiocarbon Dates from "Ridgetown Island" in Southwestern Ontario
Dreimanis, A. pp 582-586
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Preparation and Analysis by Ion Exchange Techniques of Sodium Salts of Mandelic Acid Derivatives
Klingenberg, Joseph J.; Kim, Hong Zoon pp 587-590
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Embedding Plant Material in Liquid Synthetic Resin
Seidman, Gabriel pp 590-591
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Two New Spider Records for Ohio
Suman, Theodore W. pp 591-591
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Convex-Concave Landslopes : A Geometrical Study
White, J. F. pp 592-608
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Diplocardia Varivesicula, a New Megascolecid Earthworm from Indiana (Oligochaeta)
Murchie, William R. pp 609-612
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Book Notice
pp 612-612
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Sexual Recognition in Adult Erythemis Simplicicollis (Odonata: Anisoptera)
Andrew, Clifford G. pp 613-617
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Spiders in Old Insect Galls on Goldenrod
Miller, William E. pp 618-619
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Aquatic Phycomycetes Collected from the Athens State Hospital Ponds
Crane, G. L.; Vermillion, M. T. pp 619-620
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Book Notices
pp 620-622
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Index to Volume 66
pp 623-628
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Back Matter
pp 999
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