Figure 15. — Schilling's 6-needle telegraph and alarm as 

 exhibited at the Paris International Electrical Exhibition of 

 1881. From La Lumiere electrique, 1883, vol. 8, p. 337. 



Figure 16. — Jacobi's recording telegraph of 1839 as shown at 

 the Paris International Electrical Exhibition of 1881. From 

 La Lumiere electrique, 1883, vol. 8, p. 425. 



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BULLETIN 228: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY 



