LABORATORY SUPPLIES AND CHEMICALS 



CONDENSERS 



2352 



2353 



2356 



2358 



2360 



In ordering glass condensers please state whether the side tubes are desired both on 

 one side, or on opposite sides of the water jacket. 



2352 CONDENSER, Allihn's, all glass. 



Size, inches 8 10 12 15 20 25 



Each $1.20 $1.35 $1.50 $1.75 $2.25 $2.75 



2353 CONDENSER, Hallock's, of copper with block tin coil, 14J^ inches long, 



4 inches diameter, with 2 rods for attaching to support. . .$7.50 



2356 CONDENSER, Ball form, copper nickel plated, each 5.00 



2358 CONDENSER, Hopkins'. After design by Prof. C. G. Hopkins. Made 

 entirely of glass, and consists of a thin glass water tube, 

 25 mm. outside diameter and 250 mm. long, provided with 

 inlet and outlet tubes, the former reaching to near the 

 bottom of the water tube. The water tube is sealed into 

 a stronger outer tube having side neck and its lower 

 end ground to point. In use the outer tube is not cooled 

 to a temperature at which atmospheric moisture will 

 condense upon it, wherein lies the chief advantage of this 

 condenser over ordinary forms in fat extraction with 

 anhydrous ether. May also be used for ordinary distilla- 

 tion by passing the vapor through the side tube. Total 



length, 350 mm. Each 2.50 



2360 CONDENSER, Kennicott's, all glass, specially designed for water analysis 

 and adapted for use with a 32 oz. retort. Used by Chi- 

 cago Health Department 3.00 



2362 



2364 



2362 CONDENSER, Liebig's, of glass, with rubber connection, with adapter sealed 

 on to condensing tube if desired. 



Length of glass body, inches. 10 12 15 20 24 30 

 Each $0.85 $1.00 $1.10 $1.25 $1.90 $2.00 



2364 CONDENSER, Liebig's, made entirely of glass, with the condensing tube sealed 

 in the glass jacket. 



Length of glass body, inches 8 10 12 15 20 



Each $0.70 $0.90 $1.10 $1.25 $1.90 



Our Glass Blowing Department is equipped to make special types of all 

 Glass (plain, spiral and Bulb) condensers, as well as all types of distillation 

 and extraction tubes and flasks. Also all apparatus requiring graduations, 

 grindings, etc. 



