396 



CENTRAL SCIENTIFIC CO., CHICAGO, TJ. 8. A. 



No. 10210. 



No. 10234. 



Types of Washburn Conductivity Cells. 



PHYSICIAL CHEMISTRY APPARATUS 



BATTERY CELLS, all kinds, see general heading Batteries. 

 BRIDGE, Conductivity, see No. 10436. 

 CALORIMETERS, see general heading Calorimeters. 



10210. CELL, Conductivity, Arrhenius, for poorly conducting liquids, with electrodes of platinum 24 mm 

 in diameter, held 10 mm apart. Weight of platinum, about 5.6 grams. With hard rubber cap 



$37.50 



10211. GLASS CELL only of No. 10210 i 1.50 



10214. CELL, Conductivity, Kohlrausch, for good conductors, consisting of two cylinders graduated in 

 % cm divisions joined together, with large fused-in platinum electrodes and ground glass 

 stoppers. Weight of platinum, about 4.2 grams 29.00 



1 0218. CELL, Conductivity, Kohlrauscll, for good conductors, with the two arms graduated in 45 parts 



divided into l/5ths, and fitted with platinum electrodes set in silver rods with conducting plates. 

 Electrodes are adjustable vertically through hard rubber stoppers. Weight of platinum, about 

 0.75 grams , 25.00 



10219. GLASS CELL only of No. 10218, graduated 6.00 



30226. CELL, Conductivity, Kohlrausch, for poorly conducting liquids, with large, securely fused-in 



platinum electrodes. Weight of platinum, about 4.2 grams. With ground glass stopper and 

 glass cell graduated in % cm divisions 25.00 



10230. CELL, Conductivity, Kohlrausch-Holburn, for poorly conducting liquids, with vertical electrodes 



supported in adjustable rubber cap so that the distance apart may be changed as desired. 

 Weight of platinum, about 4.2 grams i 37.50 



10231. GLASS CELL only of No. 10230 1.50 



10234. CELL, Conductivity, Ostwald, for poorly conducting liquids, with platinum electrodes 15 mm in 



diameter, held 20 mm apart. Weight of platinum, about 2.2 grams. With hard rubber cap 

 30.00 



10235. GLASS CELL only of No. 10234 1.50 



CELLS, Conductivity, Washburn. These cell^ are described in detail in the Journal of the Ameri- 

 can Chemical Society, Vol. XXXVIII, for 1916, page 2449. We shall be glad to quote prices 

 upon any of the types described, and to furnish them upon order. They are not carried regu- 

 larly in stock. 



CELL, Standard or Normal, see Batteries. 



