LABORATORY SUPPLIES AND CHEMICALS 



177 



2954 

 2952 GAS 



2954 GAS 



2955 GAS 



2952- 



2955 



GAS 

 GAS 

 GAS 

 GAS 



2955a GAS, 

 2955b GAS, 

 2955c GAS, 



PALLADIUM TUBE, Hempel's, for absorption of hydrogen, 



filled with palladium black $5.00 to 10.00 



COLLECTING TUBES, of glass, plain, with stopcock at each end. 



Capacity 100 250 500 cc 



Each ; $3.50 4.50 5.00 



COLLECTING TUBES, Winkler's, of zinc, with two stopcocks; for 

 collecting and holding gas samples; 12 inches long," 4^ inches di- 

 ameter $3.25 



BULBS, Chancel's and Dumas', see Bulbs. 



BAGS, see Bags. 



BALLOONS, for weighing gases, see Balloons. 



BOTTLES, Washing, see Bottles. 



Ammonia, Anhydrous Ammonia, liquified, in 35 and 100-lb. cylinders, Ib. $0.50 



Carbonic, liquefied, in 18-lb. cylinders, Ib 25 



Chlorine, liquefied, in cylinders of 100 Ibs., Ib .25 



2955d 



2955e 



2955d GAS CYLINDERS, Steel, tested to 600 Ibs. hydrostatic pressure. The capacity 

 is based on a pressure of 225 pounds, at which pressure the cylinders are 

 filled by us. The price includes a brass name plate engraved with name 

 am 1 address and the McLahlan patent double needle- valve. 



Cubic feet 25 40 50 



Each $20.00 25.00 30.00 



Cylinders filled with pure Oxygen Gas, per cubic foot $ 0.12^2 



2955e GAS, Oxygen, in seamless steel cylinders, under a pressure of 1,800 pounds 

 per square inch. 



40 gallon (cylinder, $7.50; Gas, 2.50) 8,25 



100 gallon (cylinder, $12.00; Gas, 5.00) 17.00 



Wheel key and yoke for rubber tubing 1.75 



N. B. We allow full price for empty cylinders if returned in good order 

 within a reasonable time. Wheel key and yoke not returnable. 



2955f GAS, Sulphur Dioxide, liquefied. 



In 20-oz. tins, each $0.50 



In 6-lb. iron cylinders, each 6.00 



Cylinders and tins not returnable. 



