MAKING RUBB[R GOODS 



>eci(icaiion is a mailer o( chemisiry. Why nol 

 le experl rubber chemist help you (o do it ? 



EDERICK J. MAYWALD, F.C.S. 



CONSULTING CHEMIST 

 'ine Slreet Phone, sVJ Juh n New York 



iir. 



NOT A 



,P 



BUYERS' DIRECTORY 58. 



RAIN COAT 



TTKLESS THia CIECTTLAR 

 aEOISTEB£D TRADE- 

 MARK IS STAUFEO ON 



THE nrsisE. 



^*g- 





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



Vol. XLIV. No. 5. 



AUGUST 1, 1911. 



35 CENTS. 



$3.00 Per Year. 

 93.50 Abroad. 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT. BOSTON. MASS. 



