Front Matter
pp. 0
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Announcements and Economics Section Formed
pp. 50-50
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Glacial Geology of Ohio in 1874 - The End of an Era
White, George W. pp. 51-56
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Geochemical Investigation of the Lower Cuyahoga River, Cleveland, Ohio
Lo, Howard H.; Shong, Ahlene A. pp. 57-62
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Determination of the Blastema Cell Cycle in Regenerating Limbs of the Larval Axolotl, Ambystoma Mexicanum
McCullough, Willie D.; Tassava, Roy A. pp. 63-65
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Sulfur Isotope Composition of Some Sulfide and Sulfate Minerals in Ohio
Botoman, George; Faure, Gunter pp. 66-71
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Brief Note New Mastadon Finds from Southwestern Ohio
Ettensohn, Frank R. pp. 71-72
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Growth Rate, Life Span and Molting Cycle of the Crayfish Orconectes Sanborni
St. John, F. Lee pp. 73-77
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Changes in the Marsh and Aquatic Vascular Flora of East Harbor State Park, Ottawa County, Ohio, Since 1895
Moore, David L. pp. 78-86
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Respiratory Stress in Yellow Perch Induced by Subtoxic Concentrations of Diquat
Bimber, David L.; Boenig, Robert W.; Sharma, Moti L. pp. 87-90
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Brief Note Daphnia Swarms in the Harbor at Put-In-Bay
Boucherle, M. M.; Frederick, V. Ray pp. 90-91
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A New Genus, Sordana, for the "Gypona Sordida" Complex Homoptera: Cicadellidae
DeLong, Dwight M. pp. 92-95
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Brief Note Estimating Nymphal Populations of 17-Year Cicadas in Eastern Ohio, 1968
Forsythe, H. Y., Jr. pp. 95-96
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Back Matter
pp. 999
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