2 
Pixu’s Frencn Arr-Pumps, WITH GLASS BARRELS; other air- 
pumps with brass barrels, single and double, of various sizes, to- 
gether with the various apparatus used with them. 
Large and small Puate Exvectrrican Macuines, Cyiinper 
Exectricat Macnines, and a variety of Ea eraiows ‘APPARATUS. 
Exvectro-Maeners, mounted on frames, of various sizes, capa- 
ble of supporting from 20 to ag Ibs. 
Page’s Compounp Macnet and Exectrotome, for producing 
brilliant sparks and powerful piri The same instrument, with a 
contrivance attached by which the intensity of the shocks can be 
modified at pleasure, which renders it one of the most conve : 
instruments for the application of electricity as a remedial agent in 
‘the cure of disease, and for physiological experiments. 
different kinds, an a great Brie coal of ee Magne InsTRU- 
- MENTS for the purpose of il he Bory of Exectrro-Mac- 
NE’ 
‘TISM. 
Gatyanic Barrertes on Prof. Faraday’s plan, and others, for 
da ite &c. Catorimorors of different sizes. 
Nooth’s Apparatus for i impregnating ee wih ist acide 
Apparatus for solidifying carbonic 
Guass Conpensine SYRINGES * oa Pobre M cit Lan- 
aah with Astronomicat and other Suipes—Acare and STEEL 
Porcetain, Wepewoon, eae and Buacx Leap Cruci- 
BLES—Murrtes and Currr 
Berzelius’s Sprair iis with Sranps and Rines, Grass Spir- 
IT andred diferent of Crvstaxs in wood, in boxes containing one 
OF Particular ee paid to the analysis of ores, minerals, 
mineral waters 
New York, J une 19, 1841. 
Small working models of Exectro-Macnetic Macuines, of E 
