566 



INDEX. 



struction of the voltaic sustaining 

 battery, 37. 



Murchison (R. I.) on the older rocks 

 of Devon and Cornvpall, 401. 



Mushrooms, their effects on the air, 

 334. 



Napthalin, on the composition of, 62. 



Navigation, on the application of elec- 

 tro-magnetism to, 164. 



Newman's barometers, 202. 



Nitrate of methylene, 88. 



Norfolk, on the crag of, 40/. 



Northampton (Marquis ot), his ad- 

 dress delivered at the anniversary 

 meeting of the Royal Society, Nov. 

 30, 1839,517. 



Norwich, on the sand-pipes in the 

 chalk near, 258, 455. 



Numerals, Boetian and Arabic, 447. 



Observatories, magnetical, proposed 

 to be established, account of the 

 instruments and mode of observa- 

 tion to be adopted, 224. 



Organic bodies, chemistry of, 67. 



Organic substances, employment of 

 chromate of lead in the analysis of, 

 2. 



Osier's anemometer and rain-guage, 

 215. 



Owen (R.) on the Lepidosiren annec- 

 tens, 72 ; on the birth of the gi- 

 raffe, 546. 



Oxacids, their action on pyroxylic 

 spirit, 51. 



Oxalate of methylene, 88. 



Oxamethylene, 95. 



Oxy-chloro-carbonate of methylene, 

 94. 



Palaeontology : on some fossil and 

 recent shells collected in Canada, 

 399 ; fossils of Devon, 402 ; re- 

 mains of insects, and a new genus 

 of Isopodous Crustacea, 534 ; bones 

 of mammoths found in the sea, 

 538; fossil trees, 539; organic re- 

 mains in the London clay, 540 ; 

 organic remains in the old red sand- 

 stone, 54 1 ; fossils in the Cork lime- 

 stone, 123. 



Pappus, on the mathematical collec- 

 tions of, 85. 



Pendulums, 188. 



Phloeomys, anewspeciesofrodent, 545. 



Phosphates, on the, 327. 



Photographic art, 381. 



Physics and meteorology, report on. 



prepared for the Antarctic Expedi- 

 tion, 177. 



Plants, on the growth of, 313. 



Plateau's (J.) Memoire sur 1' Irradia- 

 tion, 68 ; theory of accidental co- 

 lours. Sir D. Brewster on, 435. 



Platina, on the fusion of, 487. 



Plumbago, on, 419. 



Plymouth, on the laws of low water 

 at, 316. 



Poisons, mode of operation of, 320. 



Polarization of heat, 380. 



Polarization of light by living animals, 

 152. 



Poles, magnetic, 181. 



Polynemus, on some species of, 548. 



Porismatic arrangement of points, 129. 



Potash, purpurate of, 492 ; on some 

 salts of, 553. 



Potassium, ferrocyanide of, its action 

 on chloride of calcium, 490 ; chlo- 

 riodide of, 555. 



Prevost (P.), notice of, 529. 



Prony (Baron de), notice of, 527- 



Protochloride of tin, anhydrous, pre- 

 paration of, 414. 



Protopterus, 72. 



Purpurate of silver, 492 ; of potash, 

 492 ; of ammonia, 492 ; of barytes, 

 493. 



Purpuric acid, 491. 



Pyroxylic spirit and its compounds, 

 42, 86 ; discovered by Mr. Philip 

 Taylor in 1812, 42. 



Quebrada of San Mateo, route from 

 Lima by the, 333. 



R. M. Z., observations of shooting- 

 stars, August 10th and 11th, 441. 



Radiating thermometers, 214. 



Radiation, terrestial and solar, 214. 



Rain, sudden, during thunder- storms, 

 196. 



Rain-guages, 215, 217. 



Rees (Dr. G. O.) on the existence of 

 fluoric acid in animal matter, 558. 



Refraction, 198. 



Refraction, double, on the wave-sur- 

 face in the theory of, 351. 



Refractions, astronomical, theory of, 

 3, 105, 385, 497. 



Registers, 221. 



Resins, on the constitution of the, 327. 



Reviews : Dr. Thomson's Chemistry 

 of Organic Bodies, Q7 ; Plateau's 

 Memoire sur r Irradiation, 68; Lub- 

 bock's Remarks on the Classifica- 



