SANITARY RELATIONS OF THE 
COAL-TAR COLORS 
BY 
THEODORE WEYL 
AUTHORIZED TRANSLATION BY 
HENRY LEFFMANN 
I2mo. 154 Pages. Cloth, net $1.25 
EXAMINATION OF WATER 
FOR SANITARY AND TECHNICAL PURPOSES 
Seventh Edition, Revised’ 
Illustrated. r2mo. Cloth, net $1.25 
ORGANIC CHEMISTRY 
A COLLEGE TEXT-BOOK 
BY 
Henry LeEFFMANN and CHarLtes H. LAWALL 
rI2mo. Illustrated. Cloth, net $1.00 
SELECT METHODS IN FOOD 
ANALYSIS 
BY 
Henry LerrMann and WILLIAM BEAM 
Second Edition, Revised 
I2mo. Cloth, net $2.50 
i Plate and 54 Illustrations 
ALLEN’S COMMERCIAL ORGANIC 
ANALYSIS 
VOLUME 8 CONTAINS: 
Methods of Analysis of Milk and Milk-Prod- 
ucts, Meat and Meat-Products, Proteins, Pro- 
teoids, Fibroids and Enzyms. 
8vo. 696 Pages. $5.00 net 
