558 



INDEX. 



Matter, on the internal distribution 

 of, 235 ; on the constitution of, 

 449. 



Mattheides (M.) on the derivatives of 

 xylole and methyltoluole, 507- 



Melsens (M.) on the passage of pro- 

 jectiles through resisting media,481 . 



Mesitylene, researches on, 510. 



Meteoric iron, on the occlusion of 

 hydrogen gas by, 239. 



Meteors and comets, on the connexion 

 between, 188. 



Methylallyle, on the preparation of, 

 509. 



Methylic aldehyde, contributions to 

 the history of, 540. 



Mimetisite, on the artificial produc- 

 tion of, 224. 



Mineralogical nomenclature, on the 

 system of, 407. 



Mineralogy, researches in British, 

 329. 



Minerals, on the artificial production 

 of certain, 224. 



Mitscherlich (M.) on a new method of 

 determining the composition of or- 

 ganic compounds, 228. 



Molecules, on the relative magnitude 

 of, 551. 



Moon, on rainfall in relation to changes 

 of, 544. 



Moore (Carrick) on the change of 

 obliquity as a cause of change of 

 climate, 328. 



Morries (M.) on mercury- naphthyle, 

 513. 



Motion, on a new electrical pheno- 

 menon of, 533. 



Muscular force, on the source of, 

 273. 



Naphthaline, on the products of oxi- 

 dation of, 513 ; on a mercury 

 compound of, 513. 



Naumann (Dr. A ) on the specific heat 

 of gases for equal volumes under 

 constant pressure, 205 ; on the ve- 

 locity of atomic motion, 373; on 

 the relative magnitude of mole- 

 cules, 551. 



Newton (H. A.) on certain recent 

 contributions to astro-meteorology, 



Northcote (A. B.) on the water of the 

 Severn at Worcester, 249. 



Oil of bitter almonds, on a new me- 

 thod of preparing, 510. 



Organic compounds, on a new method 

 of determining the composition of, 

 228. 



Orthogonal matrices, thoughts on in- 

 verse, 461. 



Otto (M.) on crystallized oxide of 

 chromium, 223 ; on mercury-naph- 

 thyle, 513. 



Ozone, on the density of, 26 ; on the 

 existence of, in the atmosphere, 

 315. 



Pettenkofer (Prof.) on the elimina- 

 tion of carbonic acid, and the ab- 

 sorption of oxygen in the waking 

 state and during sleep, 30. 



Phenole, researches on, 512. 



Phosphorescence, observations on, 

 108. 



Phosphorus, on the influence of va- 

 rious liquids on the division of, 

 223. 



Phosphuretted hydrogen, on solid, 

 220. 



Photography, on the optics of, 231. 



Photometer, on a, for measuring the 

 transparence of the air, 241; on a 

 new, 475. 



Plants, on the nutrition of, 225; on 

 the influence of various coloured 

 rays on the decomposition of car 

 bonic acid in, 485. 



Plateau (Dr. F.) on the spontaneous 

 change of a liquid cylinder into iso- 

 lated spheres, 246. 



Poggendorff (Prof.) on a new electri- 

 cal phenomenon of motion, 533; on 

 substances suited for electroscopes, 

 549. 



Polytelite, description and analysis 

 of the new British mineral, 350. 



Pratt (Archdeacon) on Prof. Stokes's 

 proof of Clairaut's theorem, 25. 



Preyer (M.) on the analysis of colour- 

 ing-matters, 228. 



Projectiles, on the passage of, through 

 resisting media, 481. 



Radiant-points, observations on, 34. 



— — spectrum, on the, 202. 



Rainbow, on a horizontal, 440. 



Rankine (W. J. M.) on a property 

 of certain curves, 65 ; on the ap- 

 proximate drawing of circular 

 arcs of given lengths, 284, 381 ; 

 on isoperimetric regular polygons, 

 365. 



Resistance-measurer, on a, 270. 



