TEST YOUR RAW MATERIALS 



Chemical analysis will disclose 



defects or deviations from standard 



FRED'K J. MAYWALO, F. C. S., 



CONSULTING CHEMIST, 

 19 Pins St. 'I'bone, 823 Jobn. New Yotk 



TABLE OF CONTENTS 442. 

 BUYERS' DIRECTORY 52 



AT 



NOT A 



P 



RAIN COAT 



ITNLESS THIS CIRCULAB 

 KDGISTERED TRADE- 

 MAR X. 18 STAMPED ON 

 THE INSIDE. 



!^Wpeb'^ 



i> 



Edited by HENRY C. PEARSON—Offices, No. 395 Broadway, NEW YORK. 



Vol. XL. No. 6. 



SEPTEMBER i, 1909. 



35 CENTS. 



$3.00 P«r Year, 

 $3.50 Abroad. 



</> 





CONTINENTAL RUBBER CO. 



THE LARGEST PRODUCERS IN THE WORLD 



UAYUL 



Regular Brands 

 "CIRCLE" "TRIANGLE" "SQUARE" "TORREON" 



other Grades Produced to Suit Speciol Needs in Rubber Manufacture 



EXECUTIVE OFFICES 



No. Ill Broadway, New York, N. Y., U. S. A. 



Factory: TORREON, MEXICO 

 European Agents— WM. SOMERVILLE'S SONS, 9 New Broad St., London, E. C. 





LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, BOSTON, MASS. 



