Index. 



479 



Picroloxine, 46S. 



Pictet, M. representation of the rate 

 of the barometer in London, Paris, 

 and Geneva, 4881 



Pith of plants, use of, 72. 



Ph mouth, nature of the rocks at, 

 848. 



Polychroite, 468. 



Pcnd, John, Ksq. on the summer sol- 

 stice, 228 — on the north polar 1) is 

 tanccs of the fixed stars, 230 — on 

 the winter solstice, 234. 



Prouf, Dr. on the carbonic acid 

 emitted in breathing, 328. 



Pryary veins, what, 68. 



Fyrodmalite, 467. 



Pyroscope, 460. 



R. 



Renney, Mr. account of a meteor, 



by, 456. 

 Resin of Highgate, account of, 9. 

 Rotten stone in Derbyshire, remarks 



on, 54. 

 Royal Society, meetings of, 64, 150, 



463. 



Saliva, account of, 379. 



Salt from Vesuvius examined, 151. 



Salts of the blood, 200. 



Sand tubes at Drigg, account of, 67. 



Sap of vegetables, on the direction of, 

 70. 



Scale of chemical equivalents, 463. 



Schubert, M. on the flower of coni- 

 ferous plants, 73 — on the flower of 

 mosses, 74. 



>ohuhler. Dr. experiments by, on the 

 magnetic declination, 92. 



Scientific books in the pms, 78, 158, 

 238, 318, 398. 



Scotland, geological observations on, 

 28, 153. 



Secreted fluids, acrount of, 268. 



Serpentine at the Lizzard, 250. 



Si rum of the blood, '-00. 



Bheep, new variety of, 881. 



Slnll.it, what, 70. 



Singer, Mr. George John, on a linen- 



hir effect of Voltaic influence, 292. 

 Slate of Tintegel, 1 53. 

 Smithson, Jamet, Esq. on ■ tall from 



Mount Vesnviu , 161 on ulmin, 



229. 

 Solstice, rammer, obiervations on, 



228— winter, ditto, '^34. 



Sparry vein . what, 68 



Squalus maximus, anatomical obser- 

 vations on, 65. 



Stability of vessels having a well, on, 

 355. 



Sta-tfa, account of, 70. 



St. Michael's Mount, structure of, 

 252. 



Style and stigm* of compound 

 flowers, on, 75. 



Subnitrate of lead at a maximum, 

 278 — intermediate, 280— at a mi- 

 nimum, 282. 



Sulphate of manganese, 18?, 263. 



Sulphates, composition of, i : l )4. 



Su'phite of copper, account of, 61. 



Sulphite of manganese, 266. 



Sulphuret of carbon, cold produced 

 by, 152. 



Sulphurets, composition of, stated, 

 109. 



Summer birds of passage, remarks on, 

 58. 



Swedish agriculture, 397. 



Telescopes, Gregorian and Cassegre- 

 nian, compared, 64. 



Tellurium, oxide of, 61. 



Thalassio-phyies, what, 76. 



Thenard, M. observations on hydru- 

 sulphurets, by, 60. 



Thomson, Rev. James, on the agri- 

 culture of Berwickshire, 184. 



Thomson, Dr. Thomas, on the resin 

 of Highgate, 9 — on ulmin from the. 

 oak, 11 — on the heat evolved 

 during inflammation, 26 — on the 

 Daltonian theory of definite pro- 

 portions, 32, 109, 167, 293— on a 

 concretion found on the elm, 59 — 

 on a calculus from a hog, 59 — ana- 

 lysis of the gong, 208 — mineralogi- 

 cal observations 011 Cornwall, by, 

 217, 346 — mistake in his Swedish 

 lias els corrected, 397 — on the 

 composition of the oxide of zinc, 

 410— on anhydrous carbonate ot 

 copper, 464. 



Tin, peroxide <>t, 61. 



Tondi, M. distribution of rocks ac- 

 cording to, 145. 



Trao iliou rock-, on, 103 — in Coin- 

 Hall, 247 — In Yorkshire, 148. 



Tremolite, variety of, analysed, 164. 



Tnnn, Swedish, -i/c of, 



Turnip husbandry in Berwickshire, 



I 



Vaccination, report on, 3'JJ. 



