BENJ. PIKE'S, JR., PRICE CATALOGUE. 33 



No. 



742 Brass caps, for transfer ja/s, with screws to 



fit stopcock, - - 38 cts. and $ 0.50 



743 Fig. 525, bell glass with cap, two stopcocks, 



connector, jet, gas bag, pipe for gas bub- 

 bles, - quart, - 3.75 



\ gallon, - 4.00 



gallon, - 4.25 



744 Extra large stopcocks, - $1 and 1.50 



745 Fig. 527, gas bag of India rubber cloth, with 



stopcock and mouthpiece, for administering 

 nitrous oxide gas ; capacity, 2 to 10 galls, 



$3.50 to 5.00 



746 Gas bags of India rubber cloth, from 1 quart 



to 10 gallons, - - - 50cts. to 4.00 



747 Gas bags, of India rubber cloth, for gas mi- 



croscopes, drummond light, &c. from $4 to 25.00 



748 Fig. 528, gas holders, of japanned tin ; capa- 



city, 5 to 12 gallons, - $4 to 10.00 



749 Gas holders, of wood, 10 to 40 gallons, $5 to 8.00 



750 Fig. 534, compound blowpipe, with two ja- 



panned gas holders ; capacity, 12 galls, each, 15.00 



751 Compound blowpipe jet, - 2.50 



752 Compound blowpipe jet with two stopcocks, 4.00 



753 Fig. 533, gasometer, sliding with weights ; ca- 



pacity, 10 to 20 gallons, - $10 to 20.00 



754 Fig. 535, pair of gasometers for compound 



blowpipe, with jet and tubes, in japanned 



tin, the pair, . - $30 to 40.00 



755 Fig. 535, ditto, in copper, - - $40 to 50.00 



756 Fig. 536, compound blowpipe and pneumatic 



cistern, combined, 21 inches long, 12 inches 

 wide, and 12 inches deep, the oxygen gas 

 holder containing two gallons, and the hy- 

 drogen 4 gallons, the whole in japanned tin, 

 with brass stopcocks and jet pipes, 8.00 



757 Fig. 536, ditto, made of copper, - - - 10.00 



758 Fig. 536, ditto, in tin, of extra large size, - 12.00 



759 Fig. 536, ditto in copper, of extra large size, - 16.00 



760 Fig. 536, stand for charcoal in using com- 



pound blowpipe, ----- 1.50 



761 Palmer's oxy-hydrogen jet, with stand for 



burning the gases, - - - - 7.00 



