ind at the least expense, you must employ 

 d chemist. I have the training and ex- 



ERICK J. MAY WALD, F.C.S. 



CONSULTING CHEMIST 

 Streel Fhoiw, Sss John New York 



BUYERS' DIRECTORY 66 



RAIN COAT 



BEGISTEaED 



CIRCTDXAH 

 TEABE- 

 ON 



TRADE MARK 



^W-Pehc^ 



Edited by HENRY C. PEARSON— Offices, No. 15 West 38th Street, NEW YORK. 



Vol. XLVI. No. 2. 



MAY 1, 1912. 



35 CENTS. 



$3.00 Per Year. 

 $3.50 Abroad. 



^ 



^ 



(^^^ 



THE HOME OF 



(^^ ^u/^ 



REG.U-S.PAT.OFF. 



-DEO W 5 PAT OfK- 



RUBBER GOODS 



"PEC WS PAT OFR' 



THE FAULTLESS RUBBER CO. 



Ashland, Ohio, U. S. A. 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON, MASS. 



