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64. A report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal 
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92. The Compressibility of Liquids, by Carl Barus. 1892. 8°. 96 pp. 29 pi. Price 10 cents. 
93. Some Insects of Special Interest from Florissant, Colorado, and Other Points in the Tertiaries 
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97. The Mesozoic Echinodermata of the United States, by William Bullock Clark. 1893. 8°. 207 
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