INDEX. 



551 



Muscular power, on the origin of, 

 55, 182, 289. 



Newton's rule, remarks on, 121. 



Nickel, on some reactions of, 97. 



Nitratine, on the occurrence of, 139. 



Nitro-glycerine, on the use of, for 

 blasting, 238. 



Norton (Prof. W. A.) on molecular 

 physics, 205, 283. 



Orthoclase, green, analysis of, 221. 



Ostrogradsky's hydrostatical paradox, 

 on, 157. 



Oxidation, on limited, 540. 



Oxygen, on the preparation of, 386. 



Ozone, on the production of, 319. 



Palladium, on some reactions of, 97. 



Phosphorescence, on the connexion 

 between fluorescence and, 160. 



Phosphorus, on the crystallization of, 

 383. 



Photography, on the optics of, 212. 



Photometer, on the tangent, 546. 



Pierre (Dr. V.) on the phenomena of 

 fluorescence, 159. 



Plante (G.) on the production of 

 ozone, 319. 



Platinum compounds, on the beha- 

 viour of, in the flame, 100. 



Pratt (Archdeacon) on the determi- 

 nation of the figure of the earth, 

 17, 132, 313. 



Proportion-table, on a new, 350. 



Quartz, on the rotatory action exerted 

 by, on the plane of polarization of 

 the least-refrangible rays, 237. 



Radiation, on the action of aqueous 

 vapour on terrestrial, 64 ; on solar, 

 478. 



Rays, on the passage of thermal and 

 luminous, through inclined diather- 

 manous and transparent plates, 398. 



Rocks, volcanic, from New Zealand, 

 analyses of, 221. 



Rosolic acid and rosaniline, on the 

 formation of, 126. 



Rotation, on uniform, 76. 



Royal Institution, proceedings of the, 

 68. 



Roval Society, proceedings of the, 7^, 

 145, 227, 310, 390, 472, 542. 



Saccharometer, on a new optical, 357. 



Saline solutions, on the temperature 

 of the vapours of boiling, 420, 481 . 



Schreck (Dr. O.) on motion in a re- 

 sisting medium, 80. 



Sea-levels, on the problem of, 34. 



Selenium, on some reactions of, 92. 



Shell-mounds, on ancient, at St. An- 

 drews, 321. 



Siemens (C. W.) on uniform rota- 

 tion, 7^. 



Silica, on some reactions of, 103. 



Sirks (M.) on the diffusion of gases 

 through caoutchouc, 320. 



Skvlight polarization, observations 

 on, 79. 



Solar rays, on a means of weakening 

 the, in the focus of telescopes, 396. 



Sombrerite, analysis of, 220. 



Soret (L.) on aqueous vapour and 

 solar radiation, 478. 



Spectrum of aqueous vapour, on the, 

 315. 



Stahlmann (M.) on the action of water 

 on lead, 386. 



Star, on the spectrum of a new, 310. 



Stolbe (M.) on the preparation of 

 oxygen, 386. 



Strachey (Lieut. -Colonel) on the 

 action of aqueous vapour on ter- 

 restrial radiation, 64. 



Strings, experiments on the vibra- 

 tion of, 68. 



Sulphur compounds, flame-reactions 

 of, 105. 



Sun, on the magnetic condition of 

 the, 205 ; on the augmentation of 

 the disk of the, near the horizon, 

 488 ; on spectroscopic observations 

 of the, 542. 



Sylvester (Prof.) on a memoria tech- 

 nica for Delambre's, commonly 

 called Gauss's theorems, 436; on 

 the properties of the test operators 

 which occur in the calculus of in- 

 variants, 461. 



Tantalum, on the compounds of, 382. 



Telescopes, on a means of weakening 

 the solar rays in the focus of, 396. 



Tellurium compounds, on the beha- 

 viour of, in the flame, 91. 



Templeton (R.) on the received value 

 of the index of refraction of the 

 lens, 425 ; on the augmentation of 

 the disk of the sun near the hori- 

 zon, 488. 



Thallium, on some reactions of, 94 • 



glass, on; 384. 



Thermoelectrical currents, experi- 

 mental researches on, 394. 



Thionyle, on the chloride of, 386. 



Tin, on some reactions of, 101. 



