212 



Apparatus, Supplies and Materials for General Use. 



51258. 1:11. 



51261. 1:12. 



51266. 1:13. 



Bell Gasometer, Figs. 51,258 and 51,261, with loading and unloading weight, the larger 

 apparatus having guide rods for the weight. 



s. d. 



Capacity litres 



Of stout, i List No. 



lacquered sheet zinc \ Price 



O, 9 heet copper { 



50 75 100 150 



51,258 51,259 51,260 51,261 



3.10.0 4.10.0 6.0.0 8.0.0 



51,262 51,263 51,264 51,265 



5.0.0 6.0.0 7.10.0 11.10.0 



51.266. Universal Gasometer (Dr. Eichhorn's), Figure, for 120 1 volume, with water gauge, 

 pressure gauge and regulating cock (Ztschr. f. d. phys. u. chem. U., 4, 1891, p. 325) 



The regulating cock has a pointer moving over a large dial, and has 5 positions marked in plain 

 lettering on same: (a) water and gas cut off, (b) water on, gas off, (c) water on, gas out, (d) water off, 

 gas out or in, (c) water out, gas in. The apparatus can be used (1) as an ordinary gasometer, ('2) as 

 a blower, (3) as a force pump, (4) as a suction apparatus and exhaust pump. 



51.267. Rubber Bag, well constructed, Figure, for 110 1 oxygen, with tap and clamping 

 board 



51.268. --idem, for 165 1 content 



51.269. - - idem, for 210 1 content 



." 1.270. --idem, for 280 1 content. . . . 



51,271. Aspirator, of sheet zinc, with brass stopcock, with 1 vessel. Figure, 51 content 



.".1.272. -- idem, 10 1 content 



r. 1.2 73. Aspirator, with 2 vessels, Figure, 51 content 



r.l 274. - - i <1 em, 10 1 content 



.">1,27.">. Aspirator, with 2 vessels rotary on a horizontal nxis, Figure, 5 1 content . . 

 51, 276. idem, 10 1 content 



6.10.0 



5. 0.0 



ti. 5. ii 



7. 10. 



10. 0. 



0. U. 



1. 0.0 

 0.18.0 

 1. 4.0 

 2.10.0 

 3. 5.0 



l. 5891, 



:iL'!7. 140, 141. 



