HUG] 



287 



[HUG 



Hugging, William. 56. On the spectrum of 

 the flame of hydrogen. Roy. Soc. Proc., 30, 

 1880, pp. 576-580; Amer. Journ. ScL, 20, 1880, 

 pp. 121-123; Spettrosc. Ital. Mem., 9, 1881, 

 pp. 101-104; Annales de Chimie, 23, 1881, pp. 

 372-378. 



57. Sur le spectre lutnineux de 1'eau. 



Paris, Acad. Sci. Compt. Rend., 90, 1880, pp. 

 1455-1456. 



58. The photographic spectra of stars. 

 [1880.] Roy. Instit. Proc., 9, 1882, pp. 285- 

 296; Revue Scientif., 19, 1880, pp. 158-162. 



59. Preliminary note on the photographic 



spectrum of Comet b 1881. [With postscript.] 

 [1881.] Roy. Soc. Proc., 33, 1882, pp. 1-3; 

 Brit. Assoc. Rep., 1881, pp. 520-521 ; Paris, 

 Acad. Sci. Compt. Rend., 93, 1881, p. 26; 

 Chemical News, 44, 1881, p. 183; Spettrosc. 

 Ital. Mem., 10, 1881, pp. 129-130. 



60. Note on the photographic spectrum 



of the great nebula in Orion. Roy. Soc. Proc., 

 33, 1882, pp. 425-428 ; Brit. Assoc. Rep., 1882, 

 pp. 443-445 ; Paris, Acad. Sci. Compt. Rend., 

 94, 1882, pp. 685-686 ; Amer. Journ. Sci., 23, 



1882, pp. 335-336; Annales de Chimie, 28, 



1883, pp. 282-285. 



61. On the photographic spectrum of 



Comet (Wells) i, 1882. [1882.] Roy. Soc. 

 Proc., 34, 1883, pp. 148-150; Brit. Assoc. 

 Rep., 1882, pp. 442-443; Paris, Acad. Sci. 

 Compt. Rend., 94, 1882, pp. 1689-1691; Nature, 

 26, 1882, pp. 179-180. 



62. On a method of photographing the 

 solar corona without an eclipse. [1882.] Roy. 

 Soc. Proc., 34, 1883, pp. 409-414; Paris, Acad. 

 Sci. Compt. Rend., 96, 1883, pp. 51-53 ; Amer. 

 Journ. Sci., 25, 1883, pp. 126-130; Astr. 

 Nachr., 104, 1883, col. 113-118; Nature, 27, 

 1883, pp. 199-201. 



63. On the function of the sound-post 



and on the proportional thickness of the strings 

 of the violin. Roy. Soc. Proc., 35, 1883, pp. 

 241-248; Nature, 28, 1883, pp. 259-261. 



64. On some results of photographing the 



A <_> J. <J 



solar corona without an eclipse. [Further ex- 

 periments.] Brit. Assoc. Rep., 1883, pp. 346- 

 351. 



65. On comets. [Lectiire.] [1882.] Roy. 

 Instit. Proc., 10, 1884, pp. 1-11; Annales de 

 Chimie, 27, 1882, pp. 408-425. 



Hughes, David Edward. 3. On the action of 

 sonorous vibrations in varying the force of an 

 electric current. Roy. Soc. Proc., 27, 1878, pp. 

 362-369; Chemical News, 37, 1878, pp. 197- 

 199. 



4. Sur 1'emploi du telephone et du micro- 

 phone pour les recherches scientifiques. [See 

 also No. 10.] Paris, Acad. Sci. Compt. Rend., 

 87, 1878, pp. 1079-1081. 



Hughes, David Eduxtrd. 5. [On the action of 

 the microphone, in connection with Fred. VAR- 

 LEY'S experiments.] Telegr. Journ., 6, 1878, pp. 

 420-421. 



6. The source of sound in the telephone ; 



an experimental investigation by aid of the 

 microphone. Telegr. Journ., 6, 1878, pp. 451- 

 455, 470-471, 487-488. 



7. On the physical action of the micro- 

 phone. [1878.] London, Phys. Soc. Proc., 2, 

 1879, pp. 255-261 ; Nature, 18, 1878, pp. 239- 

 240; Phil. Mag., 6, 1878, pp. 44-50; Telegr. 

 Engin. Journ., 12, 1883, pp. 244-250. 



8. Recherches sur les effets d'induction a 



travers les circuits telSphoniques, au moyen du 

 microphone et du telephone. Paris, Acad. Sci. 

 Compt. Rend., 88, 1879, pp. 122-124; Les 

 Mondes, 48, 1879, pp. 256-258. 



9. Experimental investigations by aid of 



the telephone and microphone. Telegr. Journ., 

 7, 1879, pp. 20-21, 58-59. 



1O. On an induction-currents balance, 



and experimental researches made therewith. 

 Roy. Soc. Proc., 29, 1879, pp. 56-65 ; Nature, 

 20, 1879, pp. 77-81 ; Phil. Mag., 8, 1879, pp. 

 50-56; Annales Telegraph., 6, 1879, pp. 497- 

 514; London, Phys. Soc. Proc., 3, 1880, pp. 81- 

 89; Journ. Telegraph., 4, 1880, pp. 388-391, 

 420-422. 



11. Experimental researches into the 



means of preventing induction upon lateral 

 wires. Telegr. Engin. Journ., 8, 1879, pp. 163- 

 173; Annales Telegraph., 6, 1879, pp. 165-180. 



12. Note on some effects pi-oduced by the 



immersion of steel and iron wires in acidulated 

 water. Telegr. Engin. Journ., 9, 1880, pp. 163 

 -167 ; Nature, 21, 1880, pp. 602-603. 



13. Molecular electro-magnetic induction. 

 Roy. Soc. Proc., 31, 1881, pp. 525-536; Nature, 

 23, 1881, pp. 519-522. 



14. Permanent molecular torsion of con- 

 ducting wires produced by the passage of an 

 electric current. Roy. Soc. Proc., 32, 1881, pp. 

 25-29. 



15. Molecular magnetism. [(7<m.] Roy. 



Soc. Proc., 32, 1881, pp. 213-225. 



16. Preliminary note on a theory of mag- 

 netism based upon new experimental researches. 

 Roy. Soc. Proc., 35, 1883, pp. 19-20; Chemical 

 News, 47, 1883, pp. 63-64. 



17. Theory of magnetism based upon new 

 experimental researches. Roy. Soc. Proc., 35, 

 1883, pp. 178-202. 



18. On the molecular rigidity of tempered 



steel. Instit. Mechan. Engin. Proc., 1883, pp. 

 72-80 ; Van Nostrand's Engin. Mag., 29, 1883, 

 pp. 54-58. 



19. The cause of evident magnetism in 



iron, steel, and other magnetic metals. Telegr. 



