54. 



GENERAL INDEX OF VOLS. 1 12 OF THE 



ammonia, x. 1 79 ; on antimoniuretted 

 hydrogen, x. 353. 



Thompson ( W.) on some crystals of snow, 

 V. 318 ; on the Teredo navalis and Lim- 

 noria terebrans, vi. 55. 



Thomson (Dr. A. T. ) on the action of chlo- 

 rine on metallic iodides, iv. 467. 



(Dr. J.) on the interpretation of 



formulae in spherical trigonometry, x. 

 18 ; formulae for the rectification of 

 the circle, x. 210. 



(J.) on the mummy cloth of Egypt, 



V. 355 ; on the fibres of cotton, vi. 1 70. 



— — (Dr. R. D.) on the preparation of 

 boron, x. 419. 



(Dr. T.) on sesquisulphate of man- 

 ganese, viii. 173; on the right rhom- 

 bic baryto-calcite, xi. 45. 



(T. S.) on the law of the diffusion 



of gases, iv. 321. 



Thrush, Himalayan^ vii. 227. 



ThuUte and stromite, viii. 169. 



Thunder-storm, description of a, v. 418. 



Thunder-storms,phaenomena accompany- 

 ing, iv. 343. 



Tiarks (Dr.) notice of, xii. 274. 



Tide-gauge, new, xii. 430. 



Tides, on the, iii. 129, 143, 216 ; iv. 362 ; 

 vii. 136, 208, 212, 293 ; viii. 430 ; x. 

 317, 380, 381 ; xi. 195 ; xii. 351 ; in the 

 port of London, iv. 223 ; ix. 528 ; re- 

 sults of extensive observations, ix. 528; 

 in the Bay of Morecambe, v. 264 ; at 

 Liverpool, viii. 147, 418, 547 ; on Ber- 

 noulli's theory of, vii. 457 ; Prof. Pul- 

 len's lectures on the, xii. 454 ; on the 

 mechanism of waves, xii. 112; atmo- 

 spheric, of Dukhun, vi. 59. 



Tiedemann (Dr.) on the brain of the ne- 

 gro, ix. 527. 



Tiger, on the cranium of the, iv. 454. 



Tigris, on its union with the Euphrates, 

 iv. 107. 



Tilgate Forest, on the fossil reptiles of, 

 ii. 150. 



Tin, protoxide of, v. 79 ; preparation of 

 protoxide of, xii. 216. 



plate, attempts to prevent the cor- 

 rosion of, vii. 391. 



pyrites, analysis of, x. 236. 



Timber, on the strength of, i. 116. 



Titanic acid, its existence in Hessian cru- 

 cibles, vi. 113 ; in the blood, vi. 201. 



Titanium in organic matter, v. 398. 



Toad, on a new species of, vii. 328. 



Tobacco, Irish and Virginia, comparative 

 value of, vii. 393. 



Tobin (Sir J.) on the cast-iron ring money 

 found on board the wreck of a vessel, 

 xi. 131. 



Tod (D.) on the anatomy and physiology 

 of the ear, i. 375. 



Tonna (L.) on some curious facts respect- 

 ing vision, vi. 409. 



Torpedo, electricity of the, i. 67 ; obser- 

 vations on the, vi. 57 ; chemical com- 

 position of the electrical apparatus of, 

 xii. 256 ; researches relative to the, 

 xii. 196. 



Torsion balance, its application to inqui- 

 ries in electricity, vii. 304 ; an improve- 

 ment of the, vii. 303. 



Tortoise, vi. 152, 229, 380 ; vii. 65, 229 ; 

 freshwater, type of a new genus of, v. 

 143. 



Tourmaline, on the electricity of, v. 133; 

 polarization of heat by, vi. 205. 



Touraco, anatomy of the, iv. 456. 



Tovey (J.) on the relation between the 

 velocity and length of a wave of light, 

 viii. 7, 270, 500; on the undulatory 

 theory of light, ix. 420 ; on an alleged 

 demonstration of Fresnel relative to the 

 wave-surface, xi. 524 ; on the cause of 

 elliptical polarization, xii. 10; on the 

 optical theory of crystals, xii. 259. 



Towers (G.) on the reception of coloured 

 fluids in plants, xi. 533. 



Toxodon Platensis, xii. 516 ; on the cra- 

 nium of the, xi. 205. 



Trail (Dr.) on the geology of Spain, vii. 

 485. 



Transition rocks of Wales, Shropshire, 

 &c., on the, iv. 370. 



Tredgold (T.) notice of, iv. 394. 



Trevelyan (A.) on an unobserved property 

 of chlorine, iii. 72 ; on the vibration of 

 heated metals, iii. 321 ; vi. 85 ; de- 

 scription of a new spirit-lamp furnace, 

 vi. 292. 



(W. C.) on fragments of garnet in 



the mill- stone grit, vi. 76 ; on indica- 

 tions of recent elevations in Guernsey 

 and Jersey, xii. 284. 



Trigonometry, spherical, on the interpre- 

 tation of formulae in, x. 18. 



Trigonometrical functions, v. 198. 



height of Ingleborough, vi. 248, 



429. 



lines, the signs of, vi. 86. 



measurements, ix. 96. 



Trimmer (T.) on marine shells found near 

 Shrewsbury, vii. 516. 



Tringa minuta, notice of, ii. 100. 



Tripoli, composed wholly of infusorial 

 exuviae, ix. 158, 392. 



Trogon, on several species of, vii. 226. 



Trommsdorflf (M.) on gentianin, xii. 221. 



Tropaeum, a new genus of fossil shells, 

 xi. 118. 



Trypoxylon figulus and T. clavicerum, 

 habits of, xii. 15. 



Tubularia, on several specimens of, ix. 

 507. 



