4
CHEMISTRY.
£ s. d.
Guyton’s lamp furnace, fitted to a frame . £3 to 4 0 0
Single brass stand, with sliding lamp and rings
. £1 10s. to 2 0 0 Ditto, without the lamp . . . 12s. 6d. to 110 0
Iron stand, with rings and lamp . . . .15 0
Ditto, without the lamp . . . . 10s. to 0 15 0
Argand lamp, with double concentrick wick . .10 0
Ditto, with fountain reservoir . . . . 1 10 0
Argand lamp, with single wick . . . . 0 10 0
Small ditto . . . . . . . .080
Tin spirit lamp, with brass cap . . . .040
Small brass ditto, and cap . . . . .036
Large copper ditto, with three wicks . . .076
Glass ditto, with ground cap . . . .046
Blowpipe lamps, of various sizes, in tin and copper
. 2s. 6d. to 0 10 0
Bellows table, with lamp and jets, for bending and
blowing glass . . . £3 10s. to 5 15 0
Blowpipe apparatus, for producing a great heat by the combustion of oxygen and hydrogen gases; with printed instructions, packed in box complete .£3 to 3 10 0
Compressed air blowpipe, for a single gas, or common air, with lamp in box . . . .220
Leeson’s caoutchouc blowpipe, with stand, &e. complete . . . . . . . .2100
Ditto, with safety apparatus, for the mixed gases .400 Hook’s self acting spirit blowpipe . . £1 to 2 10 0
Hydraulic blowpipe . . . . £l 10s. to 2 2 0
Ditto, upon Toft’s plan . . . . .440
Dr. Black’s blowpipe . . . .2s. 6d. to 0 5 0
Dr. Wollaston’s pocket blowpipe . . . .0100
Ditto, in silver or platinum . . . 18s v to 2 10 0
Common brass blowpipe . . . 9d. to 0 1 6
Glass blowpipe ..... 9d. to 0 1 6