A Catalogue of Instruments.
A small double Barrel ditto
A ditto larger-
A large Table Air Pump —A large Standing Air Pump
chaser.
Barometers----
Ditto, with Thermometers —-
Ditto --
Ditto, with Hygrometers-
A new invented Barometer of a pe-
culiar Make
Diagonal BarometersWheel Barometers —
Tripple Diagonal Barometers —
Botanick Thermometers-
Ditto ---—--
Farenheit’s Pocket Themometers> —- — Thermometers for Brew-
ing, Distilling, &c.
Electrical MachinesDitto
/.
d.
4
4
Q
• 6
6
O
IO
IO
O
2 I
o
O
■ 2
2
O
2
12
6
' 5
5
o
5
6
■ 7
7
o
5
5
o
8
8
o
16
16
o
■ o
IO
6
■ o
18
o
I
i
o
I
11
6
6
6
o
to
IO
o
2
12
6
intents
re-
Hydrostatic Ballances-
These, with all the Variety of Ir
quired in the Practice of the several Branchesof the Mathematicks, Philosophy, and Op-tics, are Made and Sold as above, at the mostReasonable Prices. •