472 



INDEX. 



Smith (J. L.) on the new element 

 mosandrum, 238. 



Solar chemistry, recent researches in, 

 161. 



eclipse of July 29th, onthe,318. 



spectrum, on a cause for the 



appearance of bright lines in the, 50. 



Sound, on the production of aerial 

 currents by, 229. 



Sounds, on the transmission of vocal 

 and others, by wires, 115. 



Stars, on the origin of the, 216. 



Stellar radiations, on the origin of 

 the power which causes the, 216. 



Stoney (G. J.) on the mechanical 

 theory of Crookes's stress in gases, 

 401. 



Sun, on the proper motion of the, in 

 . space, 393. 



Telegraph lines, on a test for, 436. 



Telephony, on, 93. 



Terquem (A.) on the production of 

 Plateaus film-systems, 75. 



Thermometry, researches in, 62. 



Thompson (Prof. S. P.) on certain 

 phenomena accompanying rain- 

 bows, 272 5 on magnetic figures 

 illustrating electrodynamic rela- 

 tions, 348 ; on some phenomena of 

 binaural audition, 383. 



Unwin (Prof. W. C.) on the discharge 

 of water from orifices at different 

 temperatures, 281. 



Ussher (W. A. E.) on the triassic 

 strata of the South-western coun- 

 ties, 68 ; on the triassic rocks of 

 Normandy, 152. 



Vapours, on the friction of, 157. 



Voltaic action, on the theory of, 

 142. 



Voltameter, on the sonorous, 468. 



AVanklyn (Prof. J. A.) on the action 

 of permanganate of potash on cer- 

 tain gases, 288. 



Water, on salt-solutions and attached, 

 35, 105 ; on the discharge of, from 

 orifices at different temperatures, 

 281. 



Watson's intra-Mercurial planet, note 

 on, 320. 



Wichmann (Dr. A.) on the micro- 

 scopical investigation of some Hu- 

 ronian clay-slates, 311. 



Worthington (A. M.) on the blue 

 colour of the sky, 267. 



Zinc, on the analysis of alloys con- 

 taining, 14. 



Zoppritz (Dr. K.) on the theory of 

 ocean currents, 192. 



END OF THE SIXTH VOLUME. 



Printed by Taylor and Francis, Red Lion Court, Fleet Street. 



