45, OORNHILL, E.G., AND 122, EEGENT STEEET, W., LONDON. 



403 



FIG. 2252. 



FlG. 2252-f. 



Each. 

 s. d. 



2258 

 2259 



2260 

 2261 



2262 

 2263 



2264 

 2265 

 2266 

 2267 

 2268 



2269 

 2270 



2271 

 2272 



2273 

 2274 

 2275 



2276 



2277 



2278 



2278* 



2279 



2280 



2281 



Hammers, Mineralogical . . . from 



Iron Spheres, strong; this apparatus shows the 

 expansive force in the congelation of water 



Ladles, small Iron from 



Lamps, Chemical Argand, for oil, with cottons and 

 mandril, complete (fig. 2261) . . . t 7s. 6d. 



Ditto ditto with double concentric wick 



Lamp, Argand Fountain, for Oil, with adjusting screws 

 to fix on retort stand . . . . 



Lamps, Davy's Safety, for Miners 



Ditto ditto recently improved (fig. 2265) . 



Ditto, Bunsen's for Blowpipe, with tray 



Lamps, Spirit, small brass (fig. 2267) .... 



Lamps, Spirit, Brass, with two sliding rings, a conve- 

 nient stand, for small evaporating dishes, &c. ' . 



Lamps, Argand, Spirit, Brass with Circular Wick 



Lamps, Hydrogen, Dobereiner's, for producing 

 instantaneous light with a jet of hydrogen 



Magnets, Steel, Horse- shoe shape . 6d., 9d., Is. 



Magnetic Oxide of Iron, or Natural Loadstone, 

 Specimen pieces or slabs .... from 



Magnesium Wire per yard 



Masks, of Wire Gauze, for protecting the face 



Magnifying Glasses, Pocket, for examining minerals, 

 crystals, &c. (See " Optical Section," page 224) ls.6d. 



Metallic Vessel, Leslie's Cube, with polished and 

 blackened surfaces, for showing the absorption and 

 radiation of heat .... ... 



Mercurial Troughs, Iron and Mahogany . from 



Mohr's Burettes, with support (fig. 2277) 



Ditto ditto without stand 



Mortars and Pestles, of Cast Iron . . . from 



Mortars of Steel, for crushing hard minerals 



Melting Tongs, for Furnace Work .... 



Nippers or Cutting Pliers, for cutting wire . 



086 



15 



Each. 

 l s. d. 



060 



046 



008 



10 6 

 110 



18 

 12 

 150 

 070 

 066 



16 



1 10 



1 10 

 050 



046 

 006 

 12 6 



036 046 



