622 



INDEX. 



Kekule (A.) on a new series of sulphu- 

 retted acids, 37. 



Kirkman (Rev. T. P.) on the enumera- 

 tion of ,r-edra having an (# l)-gonal 

 face, and all their summits triedral, 

 482. 



, on the representation of Polyhedra, 



543. 



Langberg (Prof.), letter from, on terres- 

 trial magnetism, 434. 



Light, action of test-objects on trans- 

 mitted rays of, 139. 



Limestone nodules, structure of, 188. 



Listera ovata, structure and functions of 

 the rostellum of, 152. 



Liver, anatomy of, in vertebrate animals, 

 454. 



Lowe (E. J.) on the growth of land 

 shells, 8. 



Macdonald (J. D.), remarks on the ana- 

 tomy of the Macgillivrayia pelagica 

 and Cheletropis Huxleyi, &c., 191 ; 

 further observations on, 309. 



on the anatomy of Nautilus umbi- 



licatus, compared with that of Nautilus 

 pompilius, 311. 



, observations on the anatomy and 



affinities of Phyllirrhoe bucephala, 

 363. 



, anatomy of a new genus of pelagic 

 Gasteropoda, named Jasonilla, 368. 



Macgillivrayia pelagica, anatomy of, 191, 

 309. 



Magnecrystallic force, constancy of diffe- 

 rential, 524. 



Magnecrystals, action of heat on, 525. 



Magnetic declination at St. Helena, con- 

 clusions from, 67; annual change of, 

 72 ; monthly change of, 73. 



Magnetic medium, note on, 306 ; on the 

 existence of, 448. 



Magnetic variations, analogies of, 79 ; 

 observations of, 359. 



Magnetism of iron ships, experiments on, 

 431. 



Magnetism developed in iron bars by 

 electrical currents, 488. 



Marcet (W.) on the immediate principles 

 of the excrements of man and animals 

 in the healthy condition, 153. 



Marine meteorological observations, 342. 



Maury (Lieut. M. F.), letter concerning 

 the discovery of Euphrosyne, 165. 



Meteorite (supposed) found in trunk of 

 willow-tree, 421. 



Methylo-tetra-sulphuric acid, 546. 



Microscope, relation of angular aperture 

 of object-glass to penetrating power of, 

 60, 203. 



Microscopic test objects, on the structure 

 of, &c., 139. 



Mitchell (J.) on the influence of local 

 altitude on the burning of the fuses of 

 shells, 316. 



Molecular influences, experiments on, 

 214. 



Moseley (Rev. H.) on the descent of gla- 

 ciers, 333 ; remarks on, 412. 



Mountain-masses, computation of effect 

 of attraction of, 240. 



Miiller (J.), Copley Medal awarded to, 

 259. 



Murchison (Sir R.) on a supposed aero- 

 lite or meteorite found in the trunk of 

 an old willow-tree in the Battersea 

 Fields, 421. 



Muscular contraction, physical theory of, 

 183. 



,force evolved during, whether ana- 

 logous to that of gymnotus, &c., 378. 



Muscular fibre, development of striated, 

 194. 



Nautilus umbilicatus, anatomy of, 311. 



Newport (G.), researches on the impreg- 

 nation of the ovum in the Amphibia, 

 &c., 104. 



, obituary notice of, 278 ; writings 



of, 281. 



Nitro-glycerine, 130. 



Noble (W.) on the determination of the 

 dew-point by means of the dry- and 

 wet-bulb thermometers, 528. 



Numbers, on a property of, 42. 



Object-glasses (microscopic), method of 

 determining angle of aperture of, 16. 



Ocean, mean level of, effect of atmo- 

 spheric pressure on, 123. 



Ocular spectres and structures as mutual 

 exponents, 208, 225, 326. 



Ohm (G. S.), obituary notice of, 598. 



Organo-metallic bodies, researches in, 

 303. 



Orbitolites, monograph of the genus of, 

 417. 



Osmose, experiments on, 84 ; in mem- 

 brane and earthenware, 86 ; table of, 

 in various substances, 88. 



Osmotic force, 83. 



Ovum, impregnation of, in the amphibia, 

 104 ; in the stickleback, 168. 



Oxidation of ammonia in the human 

 body, 94. 



Oxides, metallic, &c., in relation to cata- 

 lytic phenomena, 322. 



Ozone, on the properties and constitu- 

 tion of, 475. 



Paper- making, machine for, 586. 



