jur products not as good as 

 jht to be? Probably I can 

 u how to make them right, 

 anyway. 



IICK J. MAY W ALD, F.C.S. 



CONSULTING CHEMIST 



■Phone, 823 John New York 



BUYERS' DIRECTORY 73 



HARRY Ml. MORE 



ENGINEER 



141 MILK STREET BOSTON 



Rubber Mill Engineering a Specialty 



INVESTIGATIONS DESIGNS 



REPORTS SPECIFICATIONS 



APPRAISALS SUPERVISION 



POWBII PLANTS BLBCTRICAL DISTRIBUTION 



r. S. Pat. Off. 



4 



t&TTA-PEB^ 



Edited by HENRY C. PEARSON— Offices, No. 25 West 45th Street, NEW YORK. 



Vol. LII. No. 3. 



JUNE 1, 1915. 



35 CENTS. 



$3.00 Per Year. 

 $3.50 Abroad. 



i 



I 



EDWARD MAURER CO., Inc 



80 Maiden Lane 



NEW YORK 



CRUDE RUBBER 



Guayule 



Gutta Percha 



Balata 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON, MASS. 



