314 SEC. 10. ELECTRICITY. 



L576b. Wheatstone Kaleidophone. 



The British Telegraph Manufactory, Limited. 



1576c. Wheat stone's large Dial Indicator, for use with 

 ABC instruments. 



The British Telegraph Manufactory, Limited. 



1576d. Electric Pire Alarum, for warehouses, &c. 



The British Telegraph Manufactory, Limited. 



1576e. Magnetic Exploder and Fuzes. 



The British Telegraph Manufactory, Limited. 



1576f. Wheatstone Wave Machine. 



The British Telegraph Manufactory, Limited. 



1576g. Magnetic Bell, with tell-tale. 



The British Telegraph Manufactory, Limited. 



1576h. Double Current Key, for Wheatstone's Automatic 

 Telegraph. The British Telegraph Manufactory, Limited. 



15761. Double Current Key, for Wheatstone's Automatic 

 Telegraph. The British Telegraph Manufactory, Limited. 



1576j. Rheostat for Duplex Telegraphing. 



The British Telegraph Manufactory, Limited. 



1576k. Testing Key. 



The British Telegraph Manufactory, Limited. 



15761. Testing Key. 



The British Telegraph Manufactory, Limited. 



1576m. Testing Key for Discharges. 



The British Telegraph Manufactory, Limited. 



1576n. Lightning Guard. 



The British Telegraph Manufactory, Limited. 



1576o. Polarised Belay with Wheatstone's Patent 

 Chain Adjustment. 



The British Telegraph Manufactory, Limited. 



1576p. Wheatstone Magnetic Counter with Magnet 

 and Wheel showing Mode of Application. 



The British Telegraph Manufactory, Limited. 



1576q. Magneto-Electric Clock with Steam Engine 

 Movement. The British Telegraph Manufactory, Limited. 



1576r. Wheatstone's Roman Type Printer for use 

 with the A B C Telegraph. 



The British Telegraph Manufactory, Limited. 



