fl 



Pixn's French Air-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. 



Lanje and small Plate Electrical Machines, Cylinder 

 Electrical Machines, and a variety of Electrical Apparatcs. 



Electro-Magnets, mounted on frames, of various sizes, capa- 

 ble of supporting from 20 to 3000 lbs. 



Page's Compound Magnet and Electrotome, for producing 

 brilliant sparks and powerful shocks. 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 convenient 

 instruments for the application of electricity as a remedial agent in 

 the cure of disease, and for physiological experiments. 



Small working models of Electro-Magnetic Machines 



, of 



different kinds, and a great variety of Electro-Magnetic Instru- 

 ments for the purpose of illustrating the theory of Electro-Mag- 

 netism. 



Galvanic Batteries on Prof. Faraday's plan, and others, for 

 deflagration, &c. Calorimotors of different sizes. M 



Gas-holders — Compound Blowpipes — Portable Pneuma- 

 tic Troughs — Mercurial Troughs — White and Green glass 

 Retorts and Receivers, Flasks, Tubes, and Evaporating 

 Dishes — Porcelain Retorts, Tubes, and Evaporating Dish- 

 es, Funnels, Mortars, &.c. — Iron Retorts, of different sizes 

 Bell Glasses, plain and stoppered, Graduated Bell Glasses, 

 Tubes, &,c. — Woulf's Apparatus, Glass Alembics, Stoppered! 

 Funnels, Precipitating Jars. 



iNooth's Apparatus for impregnating water with carbonic acid. J 



Apparatus for solidifying carbonic acid. 



Glass Condensing Syringes or Fire Pumps — Magic Lan- 

 terns, with Astronomical and other Slides — Agate and Steel 

 Mortars. 



Porcelain, Wedgwood, Hessian, and Black Lead Cruci- 

 bles — Muffles and Cuppels. 



Berzelius's Spirit Lamps, with Stands and Rings, Glass Spir- 

 it Lamps— Models of Crystals in wood, in boxes containing one 

 hundred different forms — Daguerreotype Apparatus complete. 



An assortment of Platina vessels, such as Crucibles, Capsules, 

 Spoons, Forceps, &c. — Platina Wire, Foil, &c. — Sets ofj 

 Blowpipe Apparatus neatly Btted up. 



A large collection of Minerals, for sale by the single specimen 



or in sets* 





CJ"P art » cu l ar attention paid to the analysis of ores, minerals, 

 mineral waters, &.c 



New York, June 19, 1841. 



* 



