550 



INDEX. 



Light, action of, on phosphorus, 8 ; re- 

 searches on, 49, 169 ; on the chemical 

 rays of, 104 ; on a new explanation of 

 the dispersion and absorption of, 326, 

 521 ; action of the yellow rays of, on 

 vegetation, 339; on the circular pola- 

 rization of, 416. 



Limone, on the preparation and compo- 

 sition of, 545. 



Lithic acid, on the action of the sun's 

 rays on, 142. 



Logarithms, theory of imaginary, 401. 



Low (Prof. D.) on the nature of the sim- 

 ple bodies of chemistry, 116. 



Lowe (E. J.) on paraselene seen at High 

 Field House, Lenton, Nottinghamshire, 

 390. 



Lyell (Mr.) on the cretacean strata of New 

 Jersey, 216: on the anthracite forma- 

 tion of Massachusetts, 221. 



Maclear (T.) on the erection of the Her- 

 schel obelisk at the Cape of Good Hope, 

 303. 



Magnetic and electric fluids, on the sup- 

 posed properties of, 142. 



Magnetizing steel bars, simple method of, 

 348. 



Mammalia, on the blood-corpuscles of 

 the, 528. 



Mallet (R.), analysis of a porcelain clay 

 discovered at Howth, near Dublin, 149. 



Manganese, on the purification of the so- 

 luble salts of, 519. 



Mannite, on the occurrence of, in sea- 

 weeds, 262, 



Marchand (E.), effects of nascent oxygen 

 on certain organic alkalies, 152. 



Marignac (M.), description and analysis 

 of pennine, 75. 



Marrian (J. P.) on sonorous phsenomena 

 in electro-magnets, 383. 



Matico, pharmaceutical and chemical cha- 

 racters of the Peruvian, 202. 



Matteucci (Prof.) on the transmission of 

 electric currents, 540. 



Mauvais (M.), on the parabolic elements 

 of the comet discovered by, 239. 



Meconic acid, on the salts of, 192. 



Meridional instruments, observations on, 

 227. 



Metals, on the cause of the reduction of, 

 when solutions of their salts are sub- 

 jected to the galvanic current, 434. 



Meteorological ol)servations, 80, 160, 240, 

 320, 400, 488. 



Meteorological phaenomena, observations 

 on some, 210. 



Meteors of the 9th and 10th of August 

 1844, on the, 339. 



Middleton (J.) on comparative analysis of 

 recent and fossil bones, 14, 222, 260. 



Miller (Dr. W. A.) on the electrolysis of 



secondary compounds, 175,246. 

 Minerals, new: — pennine, 75; spathic car- 

 bonate of iron, 129 ; glauberite from 

 Tarapaca, 231 ; pyrrhite, ib. ; buchol- 

 zite andxenolite, 232; pyrochlore, 233; 

 pyrrophyllite and vermiculite, 234 ; na- 

 tive Prussian blue, 495. 

 Moon, remarks on the telescopic appear- 

 ance of the, 310. 



Moon (R.) on polarization and double 

 refraction, 354. 



Murchison (R. I.) on the European equi- 

 valents of the Permian system, 217. 



Myriapoda, on the reproduction of lost 

 parts in, 146. 



Napier (J.) on the cyanides of the metals 

 and their combinations with cyanide 

 of potassium, 56, 66 ; on the decompo- 

 sition of the double cyanides by an 

 electric current, 379. 



Narcogenine, on the preparation and com- 

 position of, 373. 



Nasmyth (J.) on the telescopic appear- 

 ance of the moon, 310. 



Nebulae, observations on some of the, 144. 



Newport (G.) on the reproduction of 

 lost parts in Insecta and Myriapoda, 

 146. 



Numerical equations, on absolute criteria 

 of rationality for the roots of, 442. 



O'Brien (M.) on the propagation of waves 

 in a resisted fluid, and other optical 

 phenomena, 326, 521. 



Observatories, on loud beats of clocks 

 used in, 305. 



Occultations, on a gi-aphical method of 

 predicting, 313. 



Oil of laurel turpentine, on the hydrate 

 of the, 200. 



Ophiuridse, on the fossil remains of some, 

 212. 



Opiammon, on the composition of, 541. 



Paraselena; seen at Lenton, Nottingham- 

 shire, account of, 390. 



Parietine, on the nature and composition 

 of, 39. 



Peligot (Eug.) on a new chloride and 

 oxide of chromium, 484. 



Pennine, description and analysis of, 75. 



Perigal (H.) on the mode of constructing 

 the Pyramids, 404. 



Phosphorite, on the occurrence of, in 

 Estremadura, 216. 



Phosphorus, action of light on, 8. 



Photographic phenomena, on some, 445. 



Planet, disturbed, on the variable ele- 

 ments of a, 357. 



Plants, on the decomposition of carbonic 

 acid by the leaves of, 169; on the in- 

 organic constituents of, 500, 



