your products not as good as 

 ought to be? Probably I can 

 you how to- make them right. 

 ae, anyway. 



iERICK J. NAYWALD. F.C.S. 



CONSULTING CHEMIST 



St. '/>*•»«. *23 Jmkn N.w York 



BUYERS' DIRECTORY 73 



Crude Rubber and Compounding Ingrediei 



A Text Book of Rubber Manufacture 



BY HENRY C. PEARSON. 



Editor of The India Rubber World 



PRICE $10 PREPAID. 



(A Pamphlet containing the Comprehensive Index of 

 Volum > will br S.nt Free on Application.) 



Ill INIIA AMI PUB1ISHING CO.. ;„(;;»' 



r. <S 



2, 



? n0TCH ou C 



WPeb^ 



Vol. LII. No. i. 



K ditedJ>yjIBNRY C. PEARSON— Offices, No. 25 West 4 Sjh Stre et, NEW YOR K. 



APRIL 1. 1915. 



35 CENTS. 



$3°o Per Year. 

 $3*50 Abroad 



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80 Maiden Lane 



NEW YORK 



CRUDE RUBBER 



?c, 



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Gutta Percha 



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LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, IIMC„ BOSTON. MASS. 



