12
CHEMISTRY.
£
Ditto, simplified, by Hamilton . £1 11s. fid. to 3
Woulfe’s apparatus ; consisting of three bottles, with
conducting and safety tubes, in a tray, £1 to 2 Improved ditto, with the tubes ground, so that each bottle is independent of the rest; the whole fitted on a tray, with stands, retort, and receiver . . . . . . £5 to 10
Machines, for the manufacture of soda and mineral
waters ..... £60 to 73
Ditto, smaller, suitable to private families . 20
Nitrous acid apparatus, upon a small or large scale, with water joints, suitable to a manufacturer . . . • . . £1 10s. to 5
Welter’s tubes of safety . . . . 2s. to 0
Glass tubes, of every description, for connecting Woulfe’s apparatus, and other purposes, per lb. . . . 3s. to 0
Faraday’s apparatus, for exhibiting ae combustion of
the diamond in oxygen gas . . . .2
Apparatus, for producing musical sounds by the combustion of hydrogen . ... 0
Cavendish’s apparatus, for exhibiting the formation of water, and of muriatic acid, by the electrical spark ....... 2
Sir H. Davy’s apparatus, for shewing the production of water, by the slow combustion of oxygen in hydrogen ....... 1
Sir H. Davy’s glass apparatus, for the analysis of calcareous earths ...... 2
Pepy’s bottle, with spiral tube, for the same purpose 0 Sir H. Davy’s miners’ safety lamp - . . 0
Ditto, with a lens for concentrating the light . . 0
Ditto, with copper wire gauze, lens, and padlock, for
ship use ....... 0
Ditto, with platinum cage, and no lock . . .0
s. d.
10 0
0 0
0 0
10 0 0 0
10 0 7 0
6 0 10 0 10 0
10 0
5 0
2 0
6 0 10 0 12 0
14 0 16 0