QUAKER " WHITING 



so EAST 42nd STREE 

 NEW YORK 



L-T OO. 



MINERAL RUBBER 



not necessary to experuiieni 

 scale. All the equipment 

 scale experimenting is right 

 Why not try it? 

 xsuilalion — .Inn/yses — Tests 

 RICK J. MAYWALD, F.C.S. 

 Park Place, Newark, N. J. 



ALFRED hale: RUBBER CO. 



Founded 1837 ATLANTIC, MASS. Inc. 1900 



Reliable Rubber Goods 



MOLDED GOODS 



CRUDE RUBBER STANDARDIZED 



RUBBERIZING OF FABRICS 



^h 



Vol. LXI. No. 5. 



FEBRUARY 1, 1920 



$3.00 Per Year. 

 $3.50 Abroad. 



^:^. 





There is ONE SURE WAY to keep yourself from being disappointed 

 when buying vacuum dryers — and that is to ADHERE to the policy of 

 buying quality. Even though you may pay a little more at the start, you 

 are sure to PAY LESS in the end. 



"Buflovak" Vacuum Dryers 



Vacuum Shelf, Rotary and Drum Drye 

 Impregnating Apparatus — Condensers 

 Dry Vacuum Pumps 

 Solvent Reclaiming Apparatus 



"Buflovak" Evaporators 



All types and for any capacity 



"Buflokast" Chemical Apparatus 



Apparatus furnished for all standard chemi- 

 cal operations, such as nitration, reduction, 

 denitration, sulphonation, caustic fusion 

 crystallization, etc. Complete che 

 plants. 



Buffalo Foundry 

 and Machine Co. 



1577 Fillmore Ave. 

 BUFFALO, N. Y. 



New York Office: 

 17 Battery Place 



w^>^wm^^^w^^^. 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT. INC.. B OSTON. MASS. 



Entered as second-cla.s matter October 4, 1«». at the post office at New York, N. Y., under the Act of March J, !«;». 

 Published monthly at 2S West 45th Street, Nsir York. 



