Front Matter
pp 0
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Unusual Songs in Passerine Birds
Borror, Donald J. pp 129-138
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Studies of the Mexican Deltocephalinae : New Species of Eutettix and Two Allied New Genera (Homoptera: Cicadellidae)
DeLong, Dwight M.; Harlan, Harold J. pp 139-152
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Primary Productivity-Phytoplankton Relationships, Hodgson Lake, Portage County, Ohio
Olive, John H.; Morrison, John H.; Riley, Charlies V. pp 152-160
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Ascocorticium in Ohio
Cooke, William Bridge pp 161-163
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The History and Flora of Enderlin Forest, A Mixed Coniferous Plantation in Southeastern Ohio
Butala, James R.; Wistendahl, Warren A. pp 163-168
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Studies of the Mexican Deltocephalinae -1, 2 Aligia and Some New Allied Genera and Species (Homoptera: Cicadellidae)
Kramer, James P.; DeLong, Dwight M. pp 169-175
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Record Low Dissolved Oxygen in the Island Area of Lake Erie 1, 2
Britt, N. Wilson; Skoch, Edwin J.; Smith, Kenneth R. pp 175-179
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Aquatic Flowering Plants New to the Erie Islands
Stuckey, Ronald L. pp 180-187
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Some Observations on the Fine Structure of Three Genera in the Tetrasporaceae
Wujek, Daniel E. pp 187-191
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Book Notices
pp 191-192
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Back Matter
pp 999
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