4/0 



INDEX. 



Lepidoptera of Europe, abstract of 

 Ochsenheimer's genera of, 259. 



Leslie (L.) on the Bushmen of the 

 Orange river, 390. 



Life-boats, on a new method of hauling 

 off shore, 69. 



Light, on the reflection of from me- 

 tallic specula, 60; on the different 

 refrangibility of the rays of, 169. 



Limits to vaporization, 383. 



Linnsean Society, 62. 



Lithia, new process for obtaining, 228. 



Logan stones, 332. 



Lunar occultation of Aldebaran, 234 ; 

 of the planets and fixed stars in Oc- 

 tober, November, and December, 

 316, 394; eclipse, 388. 



LyeU'sfMr.) "Principles of Geology," 

 Mr. Conybeare on, 215, 359, 402. 



MacLeay (W. S.) on the dying strug- 

 gle of the Dichotomous System, 53, 

 136, 200; note upon, by Dr. Fle- 

 ming, 52. 



Magistery of bismuth, its composition, 

 409. 



Magnetic needle, detection of alloy in 

 silver by, 230. 



Magnetic polarity of two rocks of basalt 

 near Niirburg, 174; a similar disco- 

 very in the lordship of Schrbcken- 

 stein, 179. 



Magnetizing power of the solar rays, 

 155. 



Manby (Capt.) on a new method of 

 hauling life-boats off shore, 69. 



Mars, the planet, 393. 



Mechanics, on a new principle of, 137. 



Medicine and surgery, prospectus for a ■ 

 metropolitan society of general prac- 

 titioners in, 71. 



Meikle (H.) on the oeconomy of the 

 steam-engine, 213. 



Mercury, detection of poisoning by, 

 281 ; on the sesquipersulphate of, 

 463. 



Meteorological observations, by. Dr. 

 Burney : for May, 78 ; for June, 

 157 ; for July, 238 ; for August, 

 318 ; for Sept.', 397 ; for Oct., 465. 



table, by Mr. Booth, 



Mr. Giddy, and Dr. Burney : for 

 May, 80 ; for June, 157 ; for July, 

 238 ; for August, 318; for Sept. 399; 

 for Oct., 467. 



Microscopical observations, by Mr. 

 Brown, 296. 



Milk, vegetable, of the hya-hya tree of 

 Demerara, 296. 



Millstone grit, 333, 339. 



Mineral springs of Caldas da Raynha, 

 233. 



Mines, Mexican, 77. 



Moon's occultation of Aldebaran, 234, 

 465 ; Mr. Squire on the, 245 ; occul- 

 tation of planets and fixed stars, 290, 

 316, 394. 



Moon, on the late eclipse of the, 388. 



Morgan, (John) on the organs of de- 

 glutition in several of the order Ro- 

 dentia. 



Mummies of Peruvians, 59. 



Murchison (R. I.) and Prof. Sedgwick, 

 on the structure ofthe Austrian Alps, 

 81. 



Murray (J.) on the mineral springs of 

 Caldas da Raynha, 233. 



Mustard-seed, analysis of, 30S. 



Narcissean group of plants, Mr. Ha- 

 worth on, 130. 



Nitrate of silver, reduction of, 154. 



Nitric acid, fuming, 297 ; Dr. Reid 

 on, 449. 



Nixon (J.) on the heights of the prin- 

 cipal hills of Swaledale in Yorkshire, 

 140, 188. 



Noggerath (Prof. J.) on the magnetic 

 polarity of two rocks of basalt near 

 Niirburg, &c, 174. 



Ochsenheimer's genera of the Lepi- 

 doptera of Europe, abstract of, 259. 



Occultation of Aldebaran by the moon, 

 234, 465; Mr. Squire on the, 245, 

 442 ; of stars by the moon, 290. 



Oolite series, Mr. De la Beche on the 

 organic remains of, 35, 208. 



Ordnance survey, stations of in York- 

 shire and Westmoreland, 4. 



Organic remains, on, 35, 208. 



Oxygen, its effect in altering the colour 

 in wood, 224. 



Papilio, distribution of the genus, 63. 



Parallel lines, theory of, 286. 



Patents, list of new, 77, 235, 317, 395, 

 evidence on the law of, 305. 



Paussidse, on the genus, 62. 



Peak of Teneriffe, ascent of, 23, 140, 

 1 95, 248, 433. 



Percussion fire-arms, 1 55. 



Perspective, Mr. Davenport's work on, 

 2S2. 



Peruvians, mummies of, 59. 



Phillips (R.) analysis of a submuriate 

 of iron, &c, 406. 



Phosphorus, on powdering, 228 ; pre- 

 paration of, 388. 



Phosphuret of sulphur, 387. 



Poisons, Dr. Christison's treatise on, 

 276. 



Potash, bi-iodate and tri-iodate of, 229; 

 sulphate of, 29S ; ferro-prussiate of, 

 429. 



Potter, (R. jun.) on the reflection of 

 light from plane metallic specula, 60. 



Powell, ( Rev. B. ) remarks on a passage 



