CIENCE 
NEW SERIES. SINGLE Copigs, 15 cTs, 
VOL. XIII. No. 322. FRIDAY, Marcu i 1901. ANNUAL SUBSCRIPTION, $5.00. 
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JUST READY 
Laboratory Instructions in General Chemistry 
By ERNEST A. CONGDON, Pu.B., F.C.S., 
Professor of Chemistry in the Drexel Institute, Philadelphia ; Member American Chemical Society ; Fellow of the Lon- 
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With 56 Illustrations and Useful Tables. Octavo, Interleaved, Cloth net $1.00. 
*,* This handbook contains several unique and practical features that will prove helpful to the teacher. It 
may be used in connection with any general text-book on chemistry. 
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