1^ L1.J 



SCIENCE 



New Series. 

 Vol. VII. No. 164. 



Fkiday, February 18, 1898. 



Single Copies. 15 cis. 

 Annual SnBSCEiPTioN, $5.00. 



General Electric Co.'s 



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HARRISON. N. J. 



186 pages, 40 splendid eng^ravings. Con- 

 tains a table giving name, composition, and 

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 classification showing what minerals contain 

 each element. Alphabetical index of names. Lists giving the specimen values of minerals, etc., etc. For teachers, students, 

 collectors, mining experts, chemists, and others. Postpaid ; Paper, 35 cents ; Cloth, 50 cents ; Calf, interleaved, Sl.OO, 



DR. A. E. FOOTE, 1317 Arch Street, Philadelphia, Pa., U.S.A. Established me 



Complete Mineral Catalogue. 



COLLECTIONS OF MINERALS FOR STUDY OR REFERENCE. 



CABINET SPECIMENS. 



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Freezing=Point, BoiIing=Point, and Conductivity Methods. Bj^ 



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The Identification of Organic Substances. By A. A. Noyes and 



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The Chemistry of Dairying. By Harry Snyder . - - - " l.SO 



Organic Chemistry for the Laboratory. By W. A. Noyes - " 1.50 



Analytic Qeometry. By J. J. Hardy " 2.00 



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