SCIENCE— ADVERTISEMENTS 



Repeated object lessons have demonstrated that nearly all 

 progress in science has resulted in important advances 

 in industry 



Q-E Research Laboratory 

 Scheneclads, N. Y. 



Among the many products developed by the General 

 Electric Company's research laboratories the following 

 are of special interest to manufacturers: 



GENELITE 



A self lubricated metal for light duty bearing 

 purposes, containing approximately 40% by 

 volume of graphite distributed evenly through- 

 out its mass. 



WATER JAPAN 



A non-inflamniable japan which can be used 

 with absolutely no fire-risk. Results obtained 

 with this japan equal those obtained by the 

 use of the best grades of ordinary Japan. 



KENOTRON 



A high voltage D. C. rectifier, 

 following sizes : 



100,000 volt, 100 1 

 20,000 " 100 

 10,000 " 100 

 Absolutely no moving parts. 



Supplied in the 



BOROFLUX 



A deoxidizer used primarily for producing 

 mechanically sound copper castings of high 

 electrical conductivity. 



LANGMUIR CONDENSATION PUMP 



With this pump backed up by a proper rough 

 pump vacua as low as 10-3 bars have been 

 produced and measured. 



TWO STAGE ROTARY 



OIL-SEALED VACUUM PUMP 



With this pump a pressure of .001 mm. of mer- 

 cury may be obtained. It is driven by a 

 ^-H. P. motor mounted upon the same base. 

 This pump can be used satisfactorily as a 

 rough pump for backing up the Langmuir 

 Condensation Pump. 



For further information address Supply Department, Schenectady Office. 



