Front Matter
pp 0
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Changes of Vascular Aquatic Flowering Plants During 70 Years in Put-In-Bay Harbor, Lake Erie, Ohio
Stuckey, Ronald L. pp 321-342
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Book Review
pp 342-342
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Near-Infrared Sensitized Photocathodes and Film Sensitivities for Typical Xenon-Lamp Radiation and Related Subjects
Gebel, Radames K. H.; Mestwerdt, Hermann R.; Hayslett, Roy R. pp 343-357
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Bryophytes in the 1969 Crater of Deception Island, Antarctica : An Apparent Case of Rapid Long-Distance Dispersal
Young, Steven B.; Klay, Jean-Roland pp 358-362
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Some Ecological Notes on the Blue Color Phase of the Crayfish, Orconectes Virilis, in Two Lakes
Momot, Walter T.; Gall, James E. pp 363-370
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Use of Soil Surveys in the Identification of Floodplains
McCormack, Donald E. pp 370-375
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Book Review
pp 375-375
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Studies of the Gyponinae : New Species of Ponanella and Acuponana
DeLong, Dwight M.; Bush, Mignon Marie pp 376-378
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Book Reviews
pp 379-380
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Index to Volume 71
pp 380-384
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Back Matter
pp 999
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