45, COKNHILL, E.G., AND 122, EEGENT STREET, W., LONDON. 



423 



FIG. 2466. 



FIG. 2467. 



FIG. 2469. 



Each. 



2458 Gamut of Bells. This experiment consists of eight bells 



arranged on a stand, with an electrical fly or whirl 

 carrying a clapper, which, in revolving, strikes each 

 of the bells (fig. 2458) 



2459 Set of two Electrical Bells. The simplest form of the 



experiment, one bell communicating with the prime 

 conductor, the other with the ground, and made to 

 ring by the alternate blows of a brass ball suspended 

 between them by a silk cord (fig. 2459) 



2460 Set of Three Bells, on brass rod, to suspend from the 



conductor. The action of these is the same as the 

 preceding (fig. 2460) 



2461 French Arrangement for illustrating the chiming of 



bells by electrical action, one bell being connected 

 with the inner, and the other with the outer coating 

 of a Leyden jar (fig. 2461) 



2462 Electric Fly or Wheel, for producing motion by the 



dispersion of electricity from points (figs. 2462 & 2462*) 



2463 Three ditto on one stand 



2464 Franklin's Electrical Self-moving Wheel, with glass 



spokes, terminating with brass- balls. Placing the 

 wheel between a charged battery and a conductor to 

 the earth, the wheel is caused to rotate by attraction 

 and repulsion (fig. 2464) .... 2 



2465 Electrical Orrery or Planitarium, representing the 



motions of the sun, earth, and moon (fig. 2465) . 



d. 



036 



2 



Each. 

 s. d. 



220 



036 



086 



110 



FIGS. 247 r 



FIG. 2473. 



FIG. 2472. 



FIG. 2471. 



