OF CHEMICAL APPARATUS. 



FIG. 26GU. 



FIG. 2668. 



2645. 



2647. 



2648. 

 2649. 



2650. 

 2652. 



2653. 

 2654. 

 2655. 

 2656. 



2657. 

 2658. 

 2659. 



2660. 

 2662. 



2663. 



2664. 

 2665. 



2666. 



BLADDERS, prepared for containing gases, with brass ferule and stop-cock 



050 



Vertical Pneumatic Troughs, jars with expanded mouths, 8-inch, high, 

 Is. 3d. ; 12-inch, by 2-inch., Is. 6d. ; 16-inch, by 2|-inch., 2s. and 2 6 



WOULFF'S BOTTLES, best make, the necks carefully rounded for the cork, with 2 



necks, pint, Is. ; 1 pint, Is. 3d. ; 1 quart, Is. 6d. ; 3 pint, 2s. With 3 necks, 



f pint, Is. 8d. ; 1 pint, Is. lOd. ; 1 quart, 2s. 4d. ; 3 pint . 029 



SAFETY FUNNELS, for gas bottles, with round or long bulbs, each 010 



CRUM'S TUBE, for the collection of nitric oxide in the analysis of nitrates ; 



thoroughly annealed . . . . . . 5 



Stop-COCks^ glass in the middle of straight tubes 2 6 to 076 



STOP-COCKS, brass, with male screw at each end, or with male and female screw, 



or with straight tube at each end for connection . . 030 



PINCH-COCKS (MOHR'S) . . . . ' . 006 



(BUNSEN'S lever) . . . . 014 



IMPROVED ACID TAP, see No. 2296. 



Gas Holders (PEPYS'S) (fig. 2656), p. 222, of japanned zinc, receiver 16 inch. 



by 12 inch., with three brass stop-cocks . . . 2 10 



SAME SIZE, copper - . ." .' . .* .' 500 



GAS HOLDERS, glass, about 6 gallons, with brass cap and stop-cock 2 10 



GAS HOLDERS, stoneware, with japanned funnel, brass stop-cock (Jig. 2659), 



p. 222, H gallon . . . 10 



DITTO, 3 gallons . . ' . . . . 15 



GAS HOLDER, GLASS (BUNSEN'S), for mercury, complete . 076 



Apparatus for the Electrolysis of Water, Smee's cells, platinized silver and zinc 

 plates, about 5 inch, by 4 inch., each . . . 070 



GROVES'S CELLS, platinum and zinc plates, from . . 056 



PAIR OF TUBES, for collecting the H and O produced by decomposition of water 



7 6 

 BUNSEN'S APPARATUS, for preparing pure detonating gas for analytical purposes 



10 6 



