Front Matter
p. 0
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The Relation of War to Chemistry in America
Withrow, James R. pp. 65-84
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New Light on the Status of Empidonax Traillii (Audobon)
Oberholser, Harry C. pp. 85-98
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Additions to the Catalog of Ohio Vascular Plants for 1917
Schaffner, John H. pp. 99-100
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Back Matter
p. 999
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