550 



INDEX. 



sidered from a mechanical and phy- 

 siological point of view, 23; on 

 some minerals and rocks, 220, 

 260. 

 Heat, on the mechanical theory of, 

 1 ; on the influence of the absorp- 

 tion of, on the formation of dew, 

 111; researches on, 365 ; on the 

 conductivity of mercury for, 547. 



radiant, on the absorption of, 



by dry and moist air, 241 ; on the 

 influence of colour and mechanical 

 condition on, 292 ; on the use of 

 the differential galvanometer in ex- 

 periments on, 476. 



Heath (D. D.) on the problem of sea- 

 levels, 34. 



Helmholtz (Prof. H.) on the regela- 

 tion of ice, 22. 



Holt (H.) on a method of calculating 

 the coefficients of the lunar inequa- 

 lities, 490. 



Huggins (W.) on the spectrum of a 

 new star in Corona borealis, 310. 



Ice, on the regelation of, 22. 



Indium, on some reactions of, 96 ; on 

 the separation of, 381. 



Invariants, on the properties of the 

 test operators which occur in the 

 calculus of, 461. 



Iron compounds, behaviour of, in the 

 flame, 96. 



ore, pitchy, analysis of, from 



Wicklow, 220. 



Janssen (M.) on the spectrum of 

 aqueous vapour, 315. 



Jellett (Prof. J. H.) on a new optical 

 saccharometer, 357. 



Jen kin (F.) on the unit of electrical 

 resistance, 161. 



Ketteler (Dr.) on the dispersion of 

 light in gases, 336. 



Knoblauch (H.) on the passage of 

 thermal and luminous rays through 

 inclined diathermanous and trans- 

 parent plates, 398. 



Kopp (E.) on the use of nitro-glyce- 

 rine for blasting, 238. 



Kundt (A.) on the passage of the 

 spark of an induction-coil through 

 flame, 234. 



Lamy (M.) on thallium-glass, 384. 



Lawes (J. B.) on food in its relations 

 to the various exigencies of the ani- 

 mal body, 55; on the sources of 

 the fat of the animal body, 439. 



Lead, on some reactions of, 95 ; on 



the action of water on, 386. 

 Lens, on the index of refraction of 



the, 425. 

 Le Roux (F. P.) on thermoelectrical 



currents, 394. 

 Light, on the reflexion of, in the at- 

 mosphere, 41 ; on the dispersion of, 



in gases, 336. 

 Lindig (Dr. F.) on the deportment 



of solutions of Glauber's salt on 



reduction of temperature, 235. 

 Lockyer (J. N.) on spectroscopic ob- 

 servations of the sun, 542. 

 Lunar inequalities, on a method of 



calculating the coefficients of the, 



490. 

 Magnetism, experimental researches 



in, 148. 

 Magnetization, on the influence of, on 



the length and resistance of iron 



bars, 451. 

 Magnus (Prof.) on the influence of 



the absorption of heat on the for- 

 mation of dew, 111. 

 Mauganese, on some reactions of, 



104. 

 Marignac (Prof.) on the compounds 



of tantalum, 382. 

 Matteucci (Prof. C.) on the origin of 



muscular power, 289. 

 Matthiessen (Prof.) on the expansion 



by heat of metals and alloys, 472. 

 Maxwell (J. C.) on the dynamical 



theory of gases, 390. 

 Mercury, on the conductivity of, for 



heat, 547. 

 compounds, on the behaviour 



of, in the flame, 94. 

 Metals and alloys, on the expansion 



by heat of, 472. 

 Meteoric stones, on some, 260. 

 Miller (Prof. W. A.) on the spectrum 



of a new star in Corona borealis, 



310. 

 Mineralogy, notes on, 220, 260. 

 of South America, researches on 



the, 135. 

 Molecular physics, researches in, 205, 



283. 

 Molybdenum compounds, behaviour 



of, in the flame, 101. 

 Moon, on the influence of the tidal 



wave on the motion of the, 107, 



361. 

 Motion in a resisting medium, on, 80. 



