530 



INDEX. 



Huggins (W.) on the spectrum of comet 

 II., 1868, 481. 



Hulke (W.) admitted, 1. 



, note on the anatomy of the blood- 

 vessel system of the retina of the hedge- 

 hog, 439. 



HuU (E.), admitted, 1. 



Human myology, variations in, 483. 



Huxley (T. H.), remarks upon ArcJice- 

 opteryx lithograpMca, 243. 



Hydriodic acid, action of, on opianic acid 

 and meconin, 39; on hemipinic acid, 

 40. 



Hydrocarbons of the series Qn^2n+2^ 

 researches on the : III., 34 ; IV. on 

 the relation between boiling-point and 

 chemical structure, 367 ; Y. Oxidation 

 products, 372. 



Hydrochloric acid, action of, on opianic 

 acid and meconin, 39 ; on hemipinic 

 acid, 40. 



Hydrocyanic acid, on a new class of bodies 

 homologous to : I., 144 ; II., 148 ; III., 

 150. 



Hydrogen gas, occlusion of, by metals, 

 422. 



, on the combustion of, in oxygen 



under great pressure, 419. 



Impact of compressible bodies, considered 

 with reference to the theory of pressure, 

 411. 



India, proceedings of the Council of the 

 Eoyal Society with reference to the 

 undertakmg of certain physical obser- 

 vations in, 283. 



Intensity of total dayhght, on an easy 

 method of measuring approximately the, 

 525. 



Jenkin's governor, 275. 



Johnson (P. N.), obituary notice of, xxiii. 



Jones (T, W.), microscopical characters 

 of the rhythmically contractile muscular 

 coat of the veins of the bat's wing, of 

 the lymphatic hearts of the frog, and 

 of the caudal heart of the eel. In three 

 parts : Part I. Microscopical charac- 

 ters of the rhythmically contractile 

 muscular coat of the veins of the web 

 of the bat's wing ; Part II. Micro- 

 scopical characters of the rhythmically 

 contractile muscular coat of the lym- 

 phatic hearts of the frog ; Part III. 

 Microscopical characters of the rhyth- 

 mically contractile muscular coat of 

 the caudal heart of the eel, 342. 



on the phenomena observed to attend 



the propulsion of lymph from one of 

 the lymphatic hearts into a vein in the 

 frog, 335. 



, the caudal heart of the eel, a lym- 

 phatic lieart, 230. 



Kew and Lisbon magnetic curves during 

 the storm of February 20-25, 1866, 

 comparison of, 399. 



Kurrachee, on the tides of, 414. 



Lassell (W.), remarks on the great nebula 



in Orion, 322. 

 Lawes (J. B.), Royal medal awarded to, 



176. 



Lawrence (Sir W.), obituary notice of, 



XXV. 



Lead, refraction-equivalents of, 444. 

 Le Couteur (J.) readmitted, 155, 189. 

 Lee (J.), obituary notice of, xxx. 

 Life, animal, influence of, on composition 



of carbonate-of-lime waters, 189. 

 Light, note on the electro-magnetic theory 



of, 449. 



Lightning, the spectrum of, 418. 



Liquids, on waves in, 344. 



Lisbon and Kew magnetic curves during 



the storm of February 20-25, 1866, 



comparison of, 399. 

 Logan (Sir W.), Royal medal awarded to, 



179. 



Longridge (J. A.) on the resistance of the 



au' to rifled projectiles, 263. 

 Lowe (E.J.) admitted, 1. 

 Lymphatic heart, propulsion of lymph 



from the, into a vein, 335. 



McQlintock (Sfr L.) admitted, 419. 



Maclear (Sir T.), verification and exten- 

 sion of La Caille's arc of meridian, 

 171. 



Maddox (R. L.) on the apparent relation 

 of the nerves to the muscular structures 

 in the aquatic larva of Tijpula crystal- 

 Una of De Greer, 61. 



Magnesium, refraction-equivalent of, 444. 



Magnetic decUnation, on the lunar-diurnal 

 variation of, 59. 



disturbances, comparison of, with 



terrestrial galvanic currents, 249. 



storm of Feb. 20-25, 1866, com- 

 parison of magnetic curves of, at Kew 

 and Lisbon, 399. 



Magnetical instruments, self-recording, 

 at Melbourne, 170. 



, self-recording, for observatory at 



Bombay, 170. 



Magnetism, terrestrial, contributions to 

 (No. XL), 480. 



Maitland (S. R.), obituary notice of,xxxi. 



Mammaha, discovery of identity in mode 

 of origin between embryos of, and those 

 of other animals, 175. 



Matteucci (C), sur I'origine de 1' electro- 

 tone des nerfs, 258. 



Matthiessen (A.) and Foster (Gr. C), re- 

 searches into the chemical constitution 

 of narcotine and of its products of de- 

 composition (Part II.), 39. 



