554 



INDEX. 



Heddle (Dr.) on the occurrence of 

 Wulfenite in Scotland, 253. 



Hittorf (M.) on the various modifica- 

 tions of phosphorus, 31 1. 



Hoffmann (Prof.) on the preparation 

 of solutions of peroxide of hydro- 

 gen, 143. 



How (Prof.) on the mineralogy of 

 Nova Scotia, 165. 



Huggins (W.) on the spectrum of 

 comet 1, 1866, 233; on the spec- 

 tra of some of the fixed stars, 405, 

 515; on the spectra of some of the 

 nebulae, 475, 523. 



Human mortality, on the law of, 1 . 



Hydrodynamics, researches in, 33. 



Hydrogen, on the preparation of so- 

 lutions of peroxide of, 143. 



Ice=caves, notes on some, 82. 



Induction-currents, on the heat dis- 

 engaged by, 253. 



Jamin (M.) on the measurement of 

 small forces by means of the pen- 

 dulum, 160. 



Jukes (J. B.) on the carboniferous 

 slate of North Devon and South 

 Ireland, 477. 



Kekule (Prof.) on the constitution of 

 the aromatic compounds, 456. 



Land, on the physical cause of the 

 submergence and emergence of 

 the, during the glacial epoch, 301 . 



Lambert's theorem, on an instanta- 

 neous proof of, 52. 



Laserpitine, researches on, 451. 



Lead, on the occurrence of native, 

 176. 



Light, on the mechanical equivalent 

 of, 403 ; on a new method of mea- 

 suring the lengths of waves of, 

 550. 



Loewy (Mr.) on the decrease of the 

 actinic effect near the circumfer- 

 ence of the sun, 243. 



Magnetic bar, on the changes which 

 stretching and the passage of a vol- 

 taic current produce in a, 239. 



dip, on the secular change of, 



235. 



Magnetism, terrestrial, observations 

 on, 265. 



Manganite, analyses of, 166. 



Marcasite, on the occurrence of, 178. 



Matter and force, on the fundamental 

 ideas of, 459. 



Matthiessen (Prof. A.) on the expan- 



sion of water and mercury, 149; 

 on the unit of electrical resistance, 

 376. 



Mendelejeff (M.) on the compounds 

 of alcohol with water, 137. 



Mercury, on the expansion of, 149; 

 on the specific gravity of, 316. 



Metals, on the influence of the elec- 

 tro-negative elements on the spec- 

 tra of the, 483. 



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

 of some of the fixed stars, 405, 

 515. 



Miller (Prof. W. H.) on the crystal- 

 line forms of some compounds of 

 thallium, 153 ; on the forms of 

 graphitoidal silicon and graphi- 

 toidal boron, 397. 



Mineralogy of Nova Scotia, contribu- 

 tions to the, 165. 



Minerals from Lake Superior, on 

 some, 176. 



Moore (J. C.) on glacial submergence, 

 372. 



Morren (A.) on the electrical conduc- 

 tivity of gases, 319. 



Muscular power, on the origin of, 485. 



Naphthaline, on a new tetratomic 

 alcohol from, 454. 



Nebulae, on the spectra of some of 

 the, 475, 523. 



Neuhoff (M.) on naphthendichlor- 

 hydrine, 454. 



Neumayer(Gf.) on aqueous vapour and 

 terrestrial radiation, 510. 



Newton's rule, on the demonstration 

 of, 369. 



Niobium, on the occurrence of, in tin 

 ore, 142. 



Norton (Prof. W. A.) on molecular 

 physics, 265. 



Oils, mineral, on a method of testing, 

 143. 



Orbit, on the periodical changes of, 

 287. 



Ozone, on the density of, 82. 



Paalzow (Dr. A.) on the heat of the 

 electric spark, 427. 



Paragenic spectra, on the bands formed 

 by the superposition of, 22, 98. 



Pelouze (J.) on the coloration of glass 

 by selenium, 84. 



Pendulum, on the measurement of 

 small forces by means of the, 160. 



Pentole, on the composition and pro- 

 perties of, 454. 



