QUAKER" WHITING 



. VAIMDERBII 



so EAST 42i:id STREET 

 NEW YORK 



MINERAL RUBBER 



TIMES OF DEPRESSION 



overhaul your formulas, equipineiil 



and layout, and 

 T READY FOR THE BOOM 

 hUtory shows always follows a 

 period of depression. 



lEDERICK J. MAYWALD 



Coiuultin? Rubber Expert 

 an PLACE NEWARK, N. J. 



ALFRED HALE RUBBER CO. 



Incorporated 1900 ATLANTIC. MASS. Founded 1837 



Reliable Rubber Goods 



MOLDED GOODS 



CRUDE RUBBER STANDARDIZED 



RUBBERIZING OF FABRICS 



Reg. United Kingdom 



t. U. S. Pat. Off 



Edited by HENRY C. PEARSON 



Vol. LXIV. No. 5 



AUGUST 1, 1921 



35 CENTS 



$3.00 Per Year. 

 13.50 Abroad. 



Impalpable Rubber Makers Sulphur 



A specially processed PURE, ABSOLUTELY UNI- 

 FORM, EXCEPTIONALLY FINE Sulphur which is 

 free from grit and foreign matter of any kind. 



We also manufacture all grades of PURE SUBLIMED 



Sulphur. 



Will be pleased to furnish samples and quotations of 



any of our various grades on request. 



"SATISFACTION GUARANTEED' 



NIAGARA SPRAYER COMPANY 



o 

 o 



S 



> 



z 

 ■< 



Manufacturers 



MIDDLEPORT, N. Y. 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON. MASS. 



L.« 



MiHnMIJUM 



Entered as second-oUss .atter C^„ . ^, « - P-,-" ^.^w ..H. .^ ., un.. .-. .. o. Ma.H 3, .3.. 



