Front Matter
pp 0
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The Responsibility of the Professional Ecologist in the Preservation of Natural Areas
Stansbery, David H. pp 1-3
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Composition of Gray Squirrel Milk
Nixon, Charles M.; Harper, W. J. pp 3-6
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Resistance to DDT of a Freshwater Alga
Egloff, David A.; Partridge, Robert pp 6-10
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The Compositae of the Oak Openings
Easterly, Nathan William pp 11-21
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Observations on Mating, Oviposition, and Food Habits of Certain Shore Flies (Diptera: Ephydridae)
Deonier, D. L. pp 22-29
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The Herbaceous Angiosperm Flora of Mahoning County, Ohio
Chuey, Carl F. pp 30-49
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Age Determination of a Granite Gneiss from the Precambrian Basement of Scioto County, Ohio
Hofmann, Charles M.; Faure, Gunter; Janssens, A. pp 49-53
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Book Reviews
pp 54-63
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A List of Reviewers of Papers Appearing in the Ohio Journal of Science During 1971
pp 64-64
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Back Matter
pp 999
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