10
CHEMISTRY.
£ s
Newman’s improved mercurial trough, with Pepy’s gasometer attached. Brande’s Manual. V. I.
p. 321.12 12
Ditto, complete, with Volta’s eudiometer and spring,
and a series of graduated air jars . . . 16 16
Copper gasometer, with glass bell, blowpipe, flexible caoutchouc tubes, &c. for collecting, breathing, burning, and transferring the gases . £5 to ’10 10 Tin ditto, ditto . . . . . £3 10 to 5 5
Air holders, for supplying gasometers . 15s. to 1 10
Pepy’s improved air holder, for collecting and transferring (it may also be applied as a blowpipe), in tin or copper . . . £2 10s. to 4 10
Large caoutchouc bags, forming, when distended,
very copious reservoirs for gas . 15s. to 1 0
Plain air jars, in nests of 3, 4, or 5, with ground
bottoms .... 4s. 6d. to 010
Tall ditto, each . . . . . 4s. to 0 7
Plates of glass for covering ditto . . Is. to 0 3
Glass bell air jars, with open necks . .' 2s. to 0 8
Ditto, with ground stoppers, for deflagrating substances in oxygen . . . 5s. to 0 12
Copper deflagrating ladles . . . 4d. to 0 1
Air jars, with brass caps, for stop cocks . 5s. to 012
Ditto, graduated .... 7s. 6d. to 0 14
Cubic inch measures, for gas . . 4s. 6d. to 0 10
Diamonds for writing or graduating on glass, set in
iron, with ivory handle . . . .0 10
Shallow glass and tin vessels, for transferring jars of
gas . . . . . . Is. to 0 10
Brass stopcocks, for air jars . . 4s. 6d. to 0 7
Bladders mounted with ferrules, to fit the air cocks
. . . . . . . 2s. 6d. to 0 3
Retorts, mounted with caps and cocks, for deflagrations in the gases, &c. . . 10s. to 0 15
d.
0
0
0
0
0
0
0
0
0
0
6
0
6
6
0
0
0
0
0
0
0