CHEMISTRY.

9

Long funnels, for conveying fluids into retorts, with­out soiling the necks . . Is. 6d. to

Hydrostatic funnels, which allow the passage of fluid into a retort, but prevent the escape of gas Acid holders, more convenient for the same purpose . Retorts, with acid holder, ground, to the stopple hole . . . . . . . 15s. to

Flasks, with bent ground tubes, for the generating of gases . . . . .5s. 6d. to

Ditto, with stopper on the side . .7s. 6d. to

Ditto, with acid holder ......

Double necked bottle, with bent tube and stopper . . . . . . 10s. to

Ditto, with acid holder ......

Wrought iron retorts, with connecting tube, for the production of oxygen and other gases .

Cast iron ditto, with lengthening pipe Black oxide of Manganese, per lb. .

Wedgwoods porcelain retorts . . .2s. to

Crucible ware retorts . . . Is. 9d. to

Leaden retorts, for fluoric acid ....

Leaden receivers, and bottles for ditto . 5s. to

Fine silver receivers, and bottles for ditto . £2 10s. to Round shallow pneumatic troughs, of tin or copper

15s. to

Ditto, of copper, with a well, very convenient and elegant for the lecture table Square tin pneumatic troughs . . 10s. to

Large pneumatic table, lined with copper Ditto, upon Leesons plan .....

Small mercurio pneumatic trough, japanned iron tray, cover, &c. .......

Pepys mercurial gasometer, of cast iron, upon maho* gany stand, complete ,

c

E s. d.

0 4 6

0 2 0 0 12 0

1 10 0

0 7 0

0 10 6 1 0 0

8 15 0 1 2 0

1 0 0 0 15 0 0 0 4 0 5 0 0 3 0 0 14 0 1 4 0

5 0 0

1 5 0

3 3 0

0 18 0

5 5 0

6 6 o 1 10 0 6 0