EXAMINATION OF WATER 



FOR SANITARY AND TECHNICAL PURPOSES 



BY 



HENRY LEFFMANN AND WIW,IAM BEAM. 

 Second Edition. I2mo. 130 pages. Illustrated. $1.25. 



A COMPEND OF CHEMISTRY 



INORGANIC AND ORGANIC INCLUDING URINARY ANALYSIS 



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HENRY LEFFMANN. 



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SANITARY RELATIONS 



OF THE 



COAL TAR COLORS 

 BY THEODORE WEYI,, 



Authorized Translation by HENRY L/EFFMANN. 

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