INDEX. 



541 



Haughton (Rev. S.) on the pitchstone 

 porphyry of Lough Eske, 116; ou 

 hypostilbite and stilbite, 509. 

 Heartier (J. N.) ou a new instru- 

 ment for registering a rapid succes- 

 sion of electrical discharges, 324 ; 

 on the improved induction coil, 536 . 

 Heat in the sun's rays, on the, 167; 

 produced by chemical combination, 

 on the, 456. 

 Heddle (Dr.) on mesolite and Faroe- 

 lite (mesole), 50; on the " antri- 

 molite " of Thomson, 148 ; on the 

 sulphato-carbonate of barytes, 537. 

 Heiss (Prof.) on the zodiacal light 



and on shooting-stars, 220. 

 Herapath (Dr. W. B.) on the detec- 

 tion of strychnine, 197. 

 Hirst (Dr. T. A.) on equally attracting 



bodies, 305. 

 Hofmaun (Dr. A. W.) on the action of 

 sulphuric acid upon the uitriles and 

 amides, 276. 

 Holzmann (C. H. A.) on the vibration 

 of polarized light in the plane of 

 polarization, 125. 

 Humphry (Mr.) on the relations of 

 the vertebrate skeleton to the ner- 

 vous system, 218. 

 Hunt (T. S.) on the chemical com- 

 position of the waters of the St. 

 Lawrence and Ottaway rivers, 239. 

 Huxley (Prof.) on a crustacean from 



the coal-measures, 465. 

 Hydrogen, on the action of nascent, 



on bisulphide of carbon, 187. 

 Hyperbola, on a theorem relating to 



the rectangular, 423. 

 Hypostilbite, on the composition of, 



509. 

 Ideas, on the Platonic theory of, 217. 

 Imperial standard pound, on the con- 

 struction of tlie, and its copies of 

 platinum, 194. 

 Induction, experiments on, 219. 



■ apparatus, on imijroved, 55, 



471, 3:iG. 

 Iris, on the circulation of tiie blood 

 in the vessels of the, 517; on the 

 action of certain [jurts of the solar 

 spectrum uj)on the, 520. 

 Jacob (Capt. W. S.) on tlie earth's 



mean density, 525. 

 James (Lieut.-Col.) on the figure, 

 dimensions, and mean specific gra- 

 vity of the earth, 129. 



Joule (J. P.) on the thermal effects 



of fluids in motion, 286. 

 Kemp (G.) on the functions of the 

 mucous membrane of the gall- 

 bladder, 145. 

 King (Rear-Admiral P. P.) on the 

 specific gravity of sea-water in the 

 northern and southern hemispheres, 

 523. 

 Kirchhoff (G.) on the motion of elec- 

 tricity in wires, 393. 

 Kirkby (J. W.) on the occurrence of 

 a malacostracous crustacean, and of 

 a new Chiton in the magnesian 

 limestone of Durham, 213. 

 Kirkman (Rev. T. P.) on autopolar 



polvedra, 459. 

 Kjerulf (M. T.) on the Silurian rocks 



and fossils of Norway, 529. 

 Kolliker (Prof. A.) on the action of 

 urari and of strychnia on the 

 animal economy, 382. 

 Lamy (M.) on the magnetism and 

 electrical conductibility of potas- 

 sium and sodium, 148. 

 Laophis crotaloides, description of, 



210. 

 Lieben (M.) on the homogeneity of 



solutions, 506. 

 Light, on the polarization of dif- 

 fracted, 159 ; on the absorption of, 

 in traversing comets, 471 ; on the 

 measurement of the chemical ac- 

 tion of, 521. 



, polarized, vibration of, in the 



plane of polarization, 125 ; on the 

 dynamical ilhistration of the mag- 

 netic and tlie helcioidal rotatory 

 effects of transparent bodies ou, 198. 

 Lightning-flash, on tlie persistent 



appearance of the, 506. 

 Limestones, on the chemical composi- 

 tion of the Silmian and Cambrian, 

 365. 

 Lithium, on the electric conducting 

 power of, 86 ; on the atomic vveidit 

 of, 121. 

 Magnesium, on the electric conduct- 

 ing power of, 8). 

 Magnetic needle, on the infliicuce 

 exercised on the, by musical strings 

 in a state of resonance, 222. 



variation at Toronto, on tlie 



lunar-diurnal, 458. 

 Mallet (M.) on the atomic weight of 

 lithium, 121: 



