476 



Index, 



Circle, tangent to, new method of draw. 



ing, 44. 

 Clinometer, new one, description of, 43. 

 Clock, with a wooden pendulum, on the 



going of, 203. 

 Cobalt, sulphate of, composition of, 851 . 



- on tlie atomic weight of, 251. 

 Col de Balme, fossil plants found at, 67. 

 Cold, artificial, on the production of, by 



Dr. iMacculloch, 153. 

 • ^lebrooke, Mr. on the geology of the 



north-east border of Bengal, 149. 

 on the geology of India, 



notice of, 390. 

 .— — — on the valley of the Sut- 



leig river in the Himalaya, 88. 

 f ^HfCkwnet, on the new, '■298. 



Compressibility of water, observations on 



Mr. Perkins's account of, 1 35. 

 reply to remarks 



on Mr. Perkins's account of, 222. 

 Conitc, anew substance found in Mull, by 



Dr. MaccuUoch, 152. 

 Conybeare, Rev. J. J. description of a new 



substance found in ironstone, 136 



— on the red rock marie, or newer red 



sandstone, 255. 

 Copper, acetate of, analysis of, 417. 



on the atomic weight of, 243. 



-■ ■ bisulphate of, composition of, 



243. 

 ■■■ crystallization of red oxide of, 



by heat, 1 50. 



granulation of, circumstance at- 

 tending, 469. 



perchloride of, composition of, 



245. 



394. 



quantity of, raised in Cornwall, 



Com, Indian, analysis of, 470. 

 ■ .■Comwall, quantity of copper raised in, 

 394. 



Crystals, dissection of, 397. 



Crystallization of red oxide of copper by 

 heat, 150. 



Crystallized bodies, action of, on homo- 

 geneous light, 1 15. 



Cyanuret of potassium and iron, composi- 

 tion of, 435. 



iron and barium, analysis of, 



447. 



447. 



449. 



lead, analjrsis of, 

 silver, analysis of, 



Davenport, Mr. R. on rain-guages, 111. 

 Davy, JSir H. atldress of, on taking the 



chair of the Royal Society, 1 4 J. 

 Deuchar, Mr. John, on an apparatus for 

 . discharging ordnance, b9.~expeiiment» 



on flame, with an apparatus for dii* 



charging ordnance, by, i06. 

 Deuchar, Mr. J. on the application of 



Howard's fulminating mercury to the 



discharge of ordnance, 449. 

 Dinsdale, Mr. on the dry rot, 45. 

 Dollond, Mr. G. notice of his improved 



micrometer, 149. 



E. 



Egg, on the physiology of the, 351. 



Electricity, observations on the Frankliniaa 

 theory of, 181. 



Electro-magnetic experiments, 137. 



Emmet, Mr. J. B. researches into the ma- 

 thematical principles of chemical philo- 

 sophy, bi. 



F. 



Faraday, M. notice of the properties of the 

 chlorides of carbon, and a triple com- 

 pound of iodine, carbon, and hydrogen, \ 

 discovered 68 — on a mercuiial at- 

 mosphere, by, 153 — on the dissection 

 of crystals, 397 — experiments on a 

 substance obtained during the distilla- 

 tion of nitric acid, 217. 



Finland, new minerals from, 233, 



Flame, experiments on, 206. 



Forbes, Dr. on the comparative tempera- 

 ture of Penzance, 293. 



Forchhammer, Dr. on the preparation of 

 pure salts of manganese, and on the 

 composition of its oxides, 50. 



G. 



Gas, from oil and coal, on the comparative 



advantages of, 209, 300, 383, 431. 

 Gas blowpipe, observations on, 41 9. 

 Galvanic apparatus, description of a new, 



329. 

 — — — theory, new one described, 329. 

 Geology of India, introductory essay on 



the, notice of, 390. 

 ■ Russia, outline of the, notice 



of, 391. 

 Giddy, Air. E. C. register of the weather 



of Penzance for I85i0, 297. 

 Gold, on the iodide, oxides, and chlorides^ 



of, 470. 

 Gorham, Dr. analysis of Indian corn, 470. 

 Gosport, meteorological journal kept at, 



364. 

 Gravitation, mathematical inquiry into 



the causes and phenomena of, 213. 



H. 

 Hamel, Dr. account of two late attempt* 



