^OU GUARANTEE YOUR GOODS 



must know that the materials are pure, 

 can not be certain of this without 

 iical analysis. 



;derick j. maywald, f.c.s. 



CONSULTING CHEMIST 



«e Street Plionc, S.'J Jolm New York 



NOT A 



BUYERS' DIRECTORY 62 



TRADE MA 



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



Vol. XLV. No. 2. 



NOVEMBER 1, 1911. 



35 CENTS. 



$3.00 Per Year. 

 $3.50 Abroad. 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON, MASS. 



