44-6 



Uterus, human, on the passage of the 

 ovum from the ovarium to the, ii. 70. 



V. 



Vacuo, on the electrical phenomena ex- 

 hibited in, ii. 159 ; on the reduction 

 of the vibrations of pendulums to a 

 vacuum, ii. 368, 381. 



Vaisseaux Anglais, de la structure des, 

 ii. 162. 



Van Beek (Dr.), observations on the 

 velocity of sound, ii. 401. 



Vaporization, on the existence of a limit 

 to, ii. 286. 



Vas breve, on the discovery of valves 

 in the branches of the, ii. 137. 



Vegetable and animal substances, on 

 the ultimate analysis of, ii. 179. 



Vegetables: astringent, their opera- 

 tion in tanning, i. 114; change of 

 some of the proximate principles of 

 into bitumen, i. 159 ; on the colour- 

 ing matters of, ii. 86. 



Vegetation of seeds, on the direction 

 of the radicle and germen, i. 218. 



Veins, metalliferous, electro-magnetic 

 properties of, ii. 412. 



Velocities, angular, on the methods 

 best adapted for producing the great- 

 est, ii. 393. 



Velocity of sound, on, ii. 188, 221,332, 

 401. 



Vermes testacea, and the Sepia, dis- 

 tinguishing characters between the 

 ova of, ii. 75. 



Vesta, planet, i. 270, 271. 



Vesuvius, on a saline substance from, 

 i. 474 ; on the eruptions of, ii. 339. 



Vibrio tritici, microscopical observa- 

 tions on the, ii. 179. 



Vision : on the mechanism of the eye, 

 i. 35 ; case of the recovery of sight 

 after having been deprived of it by 

 cataracts, i. 58 ; power of the eye to 

 adjust itself to different distances, i. 

 62 ; chemical nature of the humours 

 of the eye, i. 108; account of two 

 children born with cataracts in their 

 eyes, i. 254 ; experiments on, i. 411 ; 

 observations relative to the near and 

 distant sight of different persons, i. 

 444, 454; anatomical structure of 

 the eye, ii. 159 ; on the motions of 

 the eye, ii. 190, 195 ; on semi-de- 

 cussation of the optic nerves, ii. 21 1 ; 



case of a lady who received sight at 

 an advanced age, ii. 289, 



Volcano in the sea off the island of St. 

 Michael, narrative of the eruption of, 

 i. 422 ; in the moon, ii. 142. 



Volcanoes, on the phenomena of, ii. 

 338. 



Volta (A.) on the electricity excited by 

 the mere contact of different con- 

 ducting substances, i. 27. 



Voltaic apparatus, i. 252, 317. 



battery, experiments with a, 



ii. 27 ; its influence in obviating the 

 effects of the division of the eighth 

 pair of nerves, ii. 156. 



W. 



Walker (R.) on the production of ar- 

 tificial cold by muriate of lime, i. 40. 



Walker (J.) on the resistance of fluids 

 to bodies passing through them, ii. 

 327. 



Walrus, some curious facts respecting 

 the, ii. 213. 



Ware (James): case of the recovery of 

 sight after having been deprived of 

 it by cataracts, i. 58 ; observations 

 relative to the near and distant sight 

 of different persons, i. 444, with Sir 

 G. Blagden's additional remarks on, 

 454. 



Warren (Rev. J.) on the objections 

 against the geometrical representa- 

 tion of the square roots of negative 

 quantities ii. 371 ; on the geome- 

 trical representation of the powers of 

 quantities whose indices involve the 

 square roots of negative quantities, 

 ii. 382. 



Water : on the quantity of gases ab- 

 sorbed by, i. 103 ; its equal tempe- 

 rature at the bottom of lakes, i. 133 ; 

 on the compressibility of, ii. 134, 

 289. 



of the Mediterranean, on the, 



ii. 355. 



, Thames, on the spontaneous pu- 

 rification of, ii. 376. 



Waters, mineral, of Britain, on the oc- 

 currence of iodine and bromine in, 

 ii. 402. 



Watt (G.) on basalt, i. 151. 



Wavellite, anew mineral, i. 181. 



Wax, vegetable, from Brazil, i. 404. 



Weaver (Thos.) on the fossil elk of Ire- 

 land, ii. 246. 



