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SCIENCE 



New Sesies 



Vol. XLVI. No. 1194 



Friday, November 16, 1917 



SiNGLB Copies, 15 Cts. 



jtiNNUAL SUBaOEIPTION, 85.00 



Kimley Electro- 

 Analysis 

 Apparatus 



for the rapid determination of 



Copper, Tin, Lead 



Zinc, etc. 



The stand is composed of three circular 

 castings mounted on an aluminum pipe, 

 so as to permit the stand to be turned 

 nearly 180° in either direction. 



The upper circular casting carries 6 re- 

 sistance lamps. Each lamp has in series 

 with it a push button switch, also 

 mounted on this same casting. 



The center circular casting carries the 

 electrode holders, a push botton switch 

 to short circuit the electrode holders 

 when not in use, and a pole-reversing 

 switch to change the polarity of the elec- 

 trodes. Each lamp on the upper casting 

 is in parallel with the electrodes under it 

 on the center casting so as lo take up the 

 current carried by the solution when the 

 solution is lowered, so that the electrodes 

 are out of contact with it. A motor for 

 revolving the electrodes is mounted on 

 the center support, between 

 the two upper castings. The 

 lower circular casting serves 

 only to carry the supports 

 for the beakers. 



Write for E. & A. Bulletin No. 206, giving details of rapid methods of electro-analysis 

 with the Kimley Apparatus 



EIMER & AMEND 



Founded 1851 



Third Ave., 18th to l9th Sts. 



NEW YORK CITY 



Branch Offices and Showrooms 

 2011 Jenkins Arcade, Pittsburgh, Pa. 48 Sparks Street, Ottawa, Canada 



