958 



Voltaic Electricity. Section 6 : Electro-magnetism and Electro-dynamics. 



No. (W320 



62 321. 1 : 3. 



62 320. 1 : 5. 



62 323 A. 1:6. 



62 324. 1 : 4. 



62 322. 1 : 4. 



62 325. 1 : r,. 



(iLViL'O. Electromagnetic Motor after Froment, Figure (M. P., !'" Kdn., III. Fig. 542), 



large pattern <S. <>. <> 



62.321. Electromagnetic Motor for rotating (leissler Tulies (if up to L'O cm length, F i g u re, 

 without tube illustrated () - "' " 



62.322. Electromagnetic Motor with suction pump, Figure -. <>- < 



Electro-magnetic Telegraphy. 



r,-_'.:iU3. Needle Telegraph, Figs. A and H, with a signal transmitter and a receiver, letters 



visible at a distance . '* 1- 



(il',324. Morse Telegraph, Figure, small, for rotating with the hand 



All Morse Telegraphs have a coloured |>in in pliu-e of the ordinary printing pin. the resultant 



\vritini; appearing in colour. 



I 'I. .'i(l, 2613.2610. JlilL', -.'ill 4. 

 923, 5908. 



