470 



INDEX. 



tion of temperature in a perfect gas 

 during expansion and contraction, 

 288,347 ; on thermodynamics, 421. 



How's (Prof.) contributions to the 

 mineralogy of Nova Scotia, 275. 



Hydrogen, on the spectra of, under 

 high pressures, 366. 



Hypotheses, on the inexpediency of 

 erroneous, 464. 



Ice, on the mechanical properties of, 

 1 ; on the veined structure of, 24 1 ; 

 on the friction of iron upon, 467. 



Illumination in transparent substances, 

 on, 221. 



Induction, on the laws of, 73. 



Iodine-vapour, on the absorption- 

 spectrum of, 465. 



Iron, on the influence of sounding- 

 vibrations on the magnetism of, 398. 



Jamin (M.) on the laws of induction, 

 73. 



Jargonium, on the new element, 65, 

 450. 



Jurassic and Cretaceous periods, on 

 the limits of the, 321. 



Kirkwood (Prof. D.) on comets and 

 meteors, 233 ; on the periods of 

 certain meteoric rings, 394. 



Kohlrausch (Prof. F.) on the deter- 

 mination of the absolute horizontal 

 intensity of the earth's magnetism, 

 114. 



Kolbe(Prof. H.) on the province of 

 mineral chemistry, 348. 



Ladenburg (M.) on the action of so- 

 dium on acetic ether, 394. 



Lagrange, on an elementary proof of 

 a theorem of, 107. 



Lead, on the solvent action of alco- 

 holic saline solutions upon sulphate 

 of, 154. 



Liquids, on the motions of certain, on 

 the surface of water, 32. 



Lockyer (J. N.) on recent solar dis- 

 coveries, 61. 



Lunar rays, on the calorific power of 

 the, 78. 



Magnetism of the earth, on the de- 

 termination of the absolute hori- 

 zontal intensity of the, 114; on 

 auroral appearances and their con- 

 nexion with the phenomena of the, 

 159. 



Magnus (Prof. G.) on the change in 

 the radiation of heat by roughness 

 of the surface, 445. 



Marie-Davy (H.) on the calorific 



power of the lunar rays, 78. 

 Matter, on the continuity of the ga- 

 seous and liquid states of, 150. 

 Mensbrugghe (Prof, van der) on the 

 motions of certain liquids on the 

 surface of water, 34. 



Meteoric rings, on the periods of cer- 

 tain, 394. 

 Meteors, observations on, 233. 

 Mica-combinations, on, 195. 



Mineralogy of Nova Scotia, contribu- 

 tions to the, 275. 

 Moon, on the calorific power of the 

 light of the, 7S. 



Moon (R.) on the functions of the 

 membranous labyrinth and semi- 

 circular canals in the human ear, 

 248. 



Moseley (Canon) on the mechanical 

 properties of ice, 1 ; on the veined 

 structure of the ice of glaciers, 241. 



Miiller (J.), physical notices by, 467. 



Natroborocalcite, on the form and 

 composition of, 275. 



Naumann (A.) 011 the deduction of 

 Avogadro's law from the funda- 

 mental conception of the mechani- 

 cal theory of gases, 317- 



Nebulae, on a theory of, 401. 



Nitrogen, on the spectra of, under 

 high pressures, 369. 



Norton (Prof. W. A.) on the funda- 

 mental principles of molecular phy- 

 sics, 126. 



Ocean- currents, on, 81, 180. 



Optical illusion, on an, 423. 



Optometer, on a new, 9. 



Oxygen, on the spectra of, under high 

 pressures, 368. 



Parnell (J.) on secondary currents 

 and a new secondary battery, 52. 



Phillips (J. A.) on the slates, felsites, 

 and elvanitesof Knockmahon, J 2. 



Physical notices, 467. 



Physics, on the fundamental princi- 

 ples of molecular, 126. 



Pictet (F. J.) on the limits of the Ju- 

 rassic and Cretaceous periods, 321. 



Polarization in transparent substances, 

 on, 221. 



Proctor (R. A.) on certain drifting 

 motions of the stars. 381. 



Radiation, on solar, 70, 299, 315. 



Rankine (W. J. M.) on the thermal 

 energy of molecular vortices, 211; 



