449 



INDEX to VOL. VII 



AbNEY (Capt. W. de W,) on the 

 photographic method of registering 

 absorption-spectra, 313. 



Acoustical observations, 149. 



Actinometiy. on a new method in, 

 393. 



Air, on the effect of the motion of 

 the, within an auditorium upon its 

 acoustic qualities, 111. 



Anthracene-blue, on the fluorescent 

 properties of, 144. 



Aron (H.) on the theory of the mi- 

 crophone, 377. 



Ayrton (Prof. W. E.) on the music 

 of colour and visible motion, 117 ; 

 on the ratio of the electromagnetic 

 to the electrostatic unit of electric 

 quantity, 277 ; on a new theory of 

 terrestrial magnetism, 401. 



Baily (W.) on starch and unannealed 

 glass under the polariscope, 39. 



Bay ley (J.) on catalysis, and the no- 

 menclature of oxides, 126. 



Beetz (Prof. W.) on the excitation 

 of electricity at the contact of solids 

 and gases, 1. 



Berthelot (M.) on the part played by 

 pressure in chemical phenomena,- 

 70 ; on the specific heats and heat 

 of fusion of gallium, 75 ; on ozone 

 and the electric effluvium, 447. 



Bichat (E.) on the magnetic rotatory 

 power of vapours, 371. 



Bile, on the action of the, in diges- 

 tion, 301. 



Binaural audition, on the theory of, 

 181, 261. 



Bisulphobichloranthacenous acid, on 

 the fluorescent properties of, 144. 



Blaikley (D. J.) on the correction to 

 be added to the length of a cylin- 

 drical resonant tube to find the true 

 wave-length, 339. 



Blowpipe, on an electrical, 372. 



Books, new : — Blanf ord's Indian Me- 

 teorological Memoirs, 64; Pres- 

 cott's Speaking Telephone, 140; 

 Draper's Scientific Memoirs, 211 ; 

 Selwyn's Geological Survey of Ca- 

 nada, 213; Clarke's Sedimentary 

 Formations of New South Wales, 

 214; Rutley's Text-book on Petro- 

 logy, 289 ; Terquem's Courbes dues 

 a la Combinaison de deux Mouve- 

 ments vibratoires perpendiculaires, 

 365 ; the American Journal of Ma- 

 thematics, Vol. I., 366. 



Bouty (M.) on the pressures exerted 

 by galvanic deposits, 375. 



Bouvet (A.) on electrochemical ac- 

 tions under pressure, 148. 



Boys (C. V.) on a condenser of vari- 

 able capacity, 108. 



Brodie (Sir B. C.) on the calculus of 

 chemical operations, 427. 



Brough (R. S.) on the proper relative 

 sectional areas for copper and iron 

 lightning-rods, 336. 



Brown (F. D.) on the maintenance of 

 constant pressures and tempera- 

 tures, 411. 



Brown (J.) on a theory of voltaic 

 action, 109. 



Catalysis, on, 126. 



Chase (Dr. P. E.) on harmonic orbits, 

 224; on a new estimate of sun's 

 distance, 377. 



Chemical operations, on the calculus 

 of, 418. 



phenomena, on the part played 



by pressure in, 70. 



Colorimeter, on the detached, 437. 



Colour, on the music of, 117. 



Condenser, on a, of variable capacit\\ 

 108. 



Cook (E. H.) on the existence of the 

 luminiferous ether, 225. 



Cooper (W. J.) on the moist-corn- 



