494 



INDEX. 



and height of, 257 ; semimenstrual 

 inequality of, 399. 



Hirudo officinalis, on the powers of 

 suction of, 198 ; on the respiratory- 

 organs of, 206. 



Hive-bee, on the temperature of the, 

 481. 



Home (Sir E.) on the use of the gan- 

 glions, 48. 



, female Ornithorhynchus para- 

 doxus without mammas, 77. 



, notice of the life and works of, 



145. 



Homogeneous fluid at liberty, equili- 

 brium of a mass of, 20, 286. 



Hope (T.), notice of the late, 84. 



Horner (L.) on an artificial substance 

 resembling shell, 375. 



Horsburgh (Capt. J.), notice of thelate, 

 436. 



Hosack (Dr.), notice of, 437. 

 Hot springs of the Pyrenees, 382. 

 Hour lines of the ancients, on the, 

 18. 



Howship (J.) on a tumour produced 

 by the larva of a large fly, 181. 



Hudson (J.), hourly observations on 

 the barometer, 136. 



Human ovum, on the, 339. 



Humboldt (Baron), report on his plan 

 for the observation of the pheno- 

 mena of terrestrial magnetism, 418. 



Hutton caverns, Mendip Hills, 56. 



Hybernation, on, 106. 



Hygrometrical observations, 333. 



Hyperbola, new property of the ares 

 of the equilateral, 258. 



[ce, at the bottom of running water, 

 330. 



Imperial standard yard of the Royal 

 Society, 52. 



Imperial standard troy pound weight, 

 on the, 409. 



Inflexion of light, on the, 72. 



Insects, circulation of the blood in, 

 317; respiration of, 403, 481; du- 

 ration of life in different media, 404; 

 temperature of, 479. 



Integral calculus, on the, 417. 



Ipoh, or Upas, poison, on, 483. 



Iridescence, phenomena of, 376. 



Irritability in animals, 105 ; greatly 

 increased in hybernation, 106. 



Iron, on the power of masses of in con- 

 trolling the attractive force of a mag- 

 net, 69. 



Iron, meteoric, remarkable mass of, 



203, 213. 



, soft, magnetic power of, 187. 



Ivory (J.) on the equilibrium of fluids, 



20, 286. 



on the figure of the planets, 20. 



on elliptic transcendents, 60. 



on the theory of the perturbations 



of the planets, 98. 

 on the disturbing function upon 



which depend the inequalities of the 



motions of the planets, 209. 



, the Royal medal awarded to, 220. 



on the astronomical refractions, 



301. 



Jacoons, on the poison used by the, 

 483. 



Jones (T. W.) on the ova of women 

 and mammiferous animals, 339. 



on the changes in the impregna- 

 ted ova of the mammifera, and ori- 

 gin of the chorion, 473. 



Johnson (Capt. E. J.), magnetic ex- 

 periments on board an iron steam- 

 vessel, 378. 



on the influence which magnetic 



needles exercise over each other, 

 282. 



Johnson (G. H. S ) on the equations 



of caustics, 324. 

 Jussieu (M.De), notice of the late, 441. 



Kangaroo, on the impregnated uterus 

 of, 279. 



Kater (Capt.), his floating collimator, 

 353, 354. 



on the imperial standard yard 



constructed for the Royal Society, 52. 



, list of his papers in the Philo- 

 sophical Transactions, 350. 



Kerigan (T.) on deducing the longi- 

 tude from the moon's right ascen- 

 sion, 107. 



Kieman (F.), anatomy and physiology 

 of the liver, 211. 



, the Copley medal awarded to, 



442. 



King (T. W.) on the influence of the 

 tricuspid valve of the heart on the 

 circulation of the blood, 337. 



on the safety-valve of the heart, 



396. 



Kirman (T. H.), a remarkable case of 



corpulency, 176. 

 Knight (T. A.) on the suction of the 



leech, 198. 



