468 



INDEX to VOL. XLVIL 



ADHESION, on apparent, 465. 



Mther, on the number and weight 

 of the molecules of, contained in 

 electric conductors, 190. 



Air, on the condensation of a mixture 

 of, and steam on cold surfaces, 67 ; 

 on the law of gyration of the, 229. 



Air- battery, on an, 61. 



Alloys, on the electromotive and ther- 

 moelectric forces of some metallic, 

 in contact with copper, 28 ; on the 

 quantitative analysis of certain, by 

 means of the spectroscope, 311. 



Atmosphere, on the acoustic transpa- 

 rency and opacity of the, 277, 374. 



Barometer, on a variation-, 362. 



Barrett (Prof. W. F.) on the molecu- 

 lar changes that accompany the 

 magnetization of iron, nickel, and 

 cobalt, 51. 



Boots, new : — Wilson's Elementary 

 Geometry, 56; Pierce's Practical 

 Solid or Descriptive Geometry, 153; 

 YarnalFs Catalogue of Stars, 155; 

 Hawtrey's Elements of Euclid, 

 215; Tait's Quaternions, 364; 

 Muir's Expression of a Quadratic 

 Surd, 366; Proctor's Universe, 

 367; Reeks's Elementary Astro- 

 nomy, 374. 



Bourbouze (M.) on a process for ve- 

 rifying the nodes in a sounding 

 pipe, 80. 



Bouty (E.) on the permanent mag- 

 netism of steel, 315. 



Brodie (Sir B. C.) on the electric de- 

 composition of carbonic-acid gas, 

 309. 



Bromide of silver, on the sensibility 

 to light of, 273. 



Brough (R. S.) on Wheatstone's 

 bridge, 22. 



Broun (J. A.) on the period of hemi- 

 spherical excess of sun-spots, 311. 



Buchanan (J. Y.) on an apparatus for 

 gas-analysis, 1. 



Calendar, on a new form of, 357. 



Capillary and electrical phenomena, 

 on the connexion between, 28 1 . 



Carbonic-acid gas, on the electric de- 

 composition of, 309. 



Carpenter (Dr. W. B.) on the phy- 

 sical cause of ocean-currents, 

 359. 



Cayley (Prof.) on the mathematical 

 theory of isomers, 444. 



Cazin (A.) on the calorific effects of 

 the magnetism in an electromagnet 

 with several poles, 392. 



Challis (Prof.) on the source of ter- 

 restrial magnetism, 14 ; on the 

 analytical principles of hydrodyna- 

 mics, 25 ; on the effects produced 

 by fog and vapour on the intensity 

 of sound, 277 '• 



Chambers (F.) on the diurnal varia- 

 tions of the wind and barometric 

 pressure at Bombay, 228. 



Circle-quadrature, on Sylvester's and 

 other forms of continued fraction 

 for, 331. 



Cobalt, on the molecular changes 

 that accompany the magnetization 

 of, 51 . 



Condensers, on telegraphic signalling 

 with, 426. 



Contact theory of the galvanic cell, 

 on the new, 401. 



Cooke (Prof. J. P.) on the Vermicu- 

 lites, their crystallographic and 

 chemical relations to the micas, 

 and on the variation of the opti- 

 cal angle in these minerals, 241. 



Croll (J.) on the physical cause of 

 ocean-currents, 94, 168, 434. 



De la Rive (A.) on the effects of mag- 

 netism on the electric discharge 

 through a rarefied gas, 462. 



