Front Matter
p. 0
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Areal Extent and Thickness of the Salt Deposits of Ohio
Pepper, James F. pp. 225-239
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Characeae of the Put-in-Bay Region of Lake Erie (Ohio)
Wood, R. D. pp. 240-258
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Book Notices
p. 258
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Oil in Germany
Ludmer, Henry pp. 259-263
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Book Notices
p. 263
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Index of Volume XLVII
pp. 265-266
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Back Matter
p. 999
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