6485 Induction 



Zigang's. Ledeboer, P. H. Lum. Elect 

 320-. 



Telephony 



Microphones 6485 



Gray's inventions. Houston, E. J. Franklin 



I. J. 118 (1884) 460-. 

 Herz's trumpet. Magneville, de. Lum 



Elect. 6 (*1882) 379-. 



History. Barrett, W. F. Nt. 17 (1878) 510- 

 . Loir, C. A. Tel. 5 (1878) 167-. 



and improvements. Barrett, W. F. Nt 

 18 (1878) 698-; 19 (1879) 12-, 56-. 



Improvements. Cauderay, J. Laus S. Vd 

 Bll. 17 (1881) 482-. 



INDUCTION. 



Weber, H. F. Ziir. Vjschr. 23 (1878) 265-. 

 Boltzmann, L. Wien Az. 16 (1879) 71-. 

 Hughes, D. E. C. E. 88 (1879) 122-. 

 Grant, W. L. Ps. S. P. 3 (1880) 276-; Ph. 



Mg. 9 (1880) 352-. 



Elsasser, C. Tel. E. J. 14 (1885) 566-. 

 Mambret, G. A. Tel. 12 (1885) 359-. 

 Mocenigo, A. G. Moncalieri Oss. Bll. 20 (1885) 



185-. 



Neale, F. W. Elect. 14 (1885) 53-. 

 Carby, J. J. [1889] Elect. 24 (1890) 122-. 

 Moon, W. Elect. Kv. 42 (1898) 502-, 539-. 

 Colard, . Sc. Abs. 2 (1899) 716-. 

 caused by continuous currents. Palaz, A. 



Elect. 29 (1892) 310-. 



electric stations. Elektrotechn. Ver. 

 Komm. Elekttech. Z. 9 (1888) 361-. 



high voltage currents. Wietlisbach, V. 



Elect. 36 (1896) 725-. 

 telegraph lines. Delarge, F. Brux. Ac. 



Bll. 47 (1879) 34-. 

 . Cauderay, J. [1880] Laus. S. 



Vd. Bll. 17 (1881) 154-. 

 . Delfieu, , & Bellon, . J. 



Tel. 9 (1885) 269-, 284-; 10 (1886) 15-. 



tramway currents. Devaux, . A. 

 Tel. 20 (1893) 330-. 



compensation. Laarmann, F. Sc. Abs. 1 



(1898) 527-. 

 effect of different metals. Fabinyi, E. (xii) 



Orv.-Term. ECs. 6 (1881) (Term. Szak) 291-. 

 electrostatic and electromagnetic, ratio. Ken- 

 nelly, A. E. Tel. J. 28 (1891) 747-. 

 , experiments. Andreis, A. de. Em. N. 



Line. At. 37 (1884) 150-. 

 neutralisation. Ferraris, G. Tor. Ac. Sc. At. 



18 (1882) 629-. 



. Gime, E. Lum. Elect. 19 (1886) 505-. 

 . Trowbridge, J., & Sheldon, S. Am. Ac. 



P. 24 (1889) 176-. 

 suppression. Barrett, W. F. [1879] Dubl. 



S. Sc. P. 2 (1880) 277-. 

 . Massin, E. A. Tel. 16 (1889) 49-. 

 . Pierard, . J. Tel. 19 (1895) 217- . 



Intensity of telephonic effects. Mercadier, E. 



C. E. 108 (1889) 735-, 796-; 112 (1891) 96-; 



A. Tel. 18 (1891) 289-. 

 Inter- urban and submarine telephony. Palaz, 



A. Ev. Sc. 44 (1889) 72-. 



telephony. La Touanne, G. de. A. Tel. 

 14 (1887) 481-. 



Lightning discharges heard in telephone. Hunt, 

 A. E. Nt. 61 (1899-1900) 368. 



LONG DISTANCE TELEPHONY. 



Gael, E. A. Tel. 8 (1881) 243-. 

 Hodges, N. D. C. Am. Ac. P. 17 (1882) 268-. 

 Hopkins, G. M. I. CE. P. 72 (1883) 197-. 

 Lockwood, T. D. Science 4 (1884) 315. 

 Delarge, F. Ev. Un. Mines 17 (1885) 228-. 

 Preece, W. H. [1886] Tel. E. J. 15 (1887) 



Rysselberghe, F. van. Ev. Sc.-Ind. 18 (1886) 



208. 



Wietlisbach, V. Cztg. Opt. 7 (1886) 231-. 

 Vaschy, . Lum. Elect. 25 (1887) 18-, 165-, 



Germain, P. C. E. 112 (1891) 1311-. 

 Geraldy, F. Lum. Elect. 47 (1893) 562-. 

 Perry, J. L. Ps. S. P. 12 (1894) 413- ; Ph. 



Mg. 36 (1893) 222-. 

 Anizan, J. Lum. Elect. 52 (1894) 424-. 

 Collette, A. E. B. J. Tel. 19 (1895) 58-, 73-, 



97-, 121-. 

 cables for. Preece, W. H. Elect. 25 (1890) 



688-; 37 (1896) 690-. 

 (Preece). Barbarat, A. A. Tel. 23 (1896- 



97) 161-. 



conducting materials for. Grief, J. B. Elekt- 

 tech. 7 (1886) 378-. 

 by ^multiple induction. Baradat, C. Eclair 



Elect. 5 (1895) 14-. 

 Van Eysselberghe's experiment. Pirani, . 



Elekttech. Z. 8 (1887) 24-. 

 use of Euhmkorff coil. Navez, (It. -col.) , & 



Navez, L. Brux. Ac. Bll. 45 (1878) 96-. 



McDonough's inventions. Houston, E. J. 



Franklin I. J. 119 (1885) 189-. 

 Magnetic bodies, impact, telephonic effects due 



to. Ader, . C. E. 91 (1880) 113-. 

 , , . DM Moncel, T. A. L. 



Lum. Elect. 2 (*1880) 277-. 

 Magneto-electric machine, experiments with 



telephone in connection with. Clarke, G. S., 



& McLeod, H. Nt. 18 (1878) 11. 

 Magnetophone. Car hart, H. S. Science 2 



(*1883) 392-. 



MICROPHONES. 



(Action of sonorous vibrations in varying force 



of electric current.) Hughes, D. E. E. S. 



P. 27 (1878) 362-. 

 ( , physical, of microphone.) Hughes, D. E. 



L. Ps. S. P. 2 (1879) 255-; Ph. Mg. 6 (1878) 



44-. 



Blyth, J. Nt. 18 (1878) 172-. 

 Carl, P. Carl Epm. 14 (1878) 570-. 

 Valette, (abbe) H. As. Fr. C. E. (1878) 316-. 

 Bkekrode, L. Nt. 19 (1879) 221. 

 Cantoni, G. (xn) Ev. Sc.-Ind. 11 (1879) 228-. 

 Eijke, P. L. Amst. Ak. Vs. M. 14 (1879) 1-; 



Arch. Neerl. 14 (1879) 76-. , 

 Boudet de Paris, M. Lum. Elect. 3 (*1881) 



293-, 313-, 342-, 358-, 434-, 448-; 4 (*1881) 



25-, 40-, 204-, 409- ; 6 (*1882) 208-. 



869 



