Front Matter
p. 0
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The Accumulation of Energy by Plants
Transeau, Edgar Nelson pp. 1-10
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The Alimentary Canal of Passalus
Lewis, Harold C. pp. 11-24
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Glass Sands of Ohio
Bownocker, J. A. pp. 25-41
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Type and Venation of Wings as Factors in Separating Certain Deltocephaloid Genera
DeLong, Dwight M. pp. 42-48
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Back Matter
p. 999
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