INDEX. 



565 



Lime and magnesia, separation of, 

 247. 



Lind's wind-gauge, 216. 



Linnaean Society, proceedings of, 70. 



Litmus, tincture of, spontaneous de- 

 coloration of, 157- 



Lubbock (J. W.) on the general so- 

 lution of algebraical equations, 165 ; 

 on the wave-surface in the theory 

 of double refraction, 35 1 ; his re- 

 marks on the classification of the 

 different branches of knowledge, 

 notice of, 473. 



Luminous point, on the appearance 

 of a, 459. 



Lushington (E. L.), not'ce of, 526. 



Lyell (C.) on the sand- pipes in the 

 chalk near Norwich, 257 ; on some 

 fossil and recent shells collected in 

 Canada, 399 ; on the relative ages 

 of crag, 407. 



Macdonald (Dr.) on the markings of 

 the eel-back dun horse, 328. 



Machine for hatching eggs, 544. 



Machinery, on the application of elec- 

 tro-magnetism to, 164,350. 



MacLean (J.), route from Lima by the 

 Quebrada of San Mateo, 333. 



Magnesia, its separation from lime 

 and alumina, 154; separation of 

 lime from, 247, 309. 



Magnetic elements, the variations of 

 the, 239. 



Magnetic intensity, foci of, 181. 



Magnetic instruments to be employed 

 in the Antarctic Expedition, 224. 



Magnetism, Gauss on the theory of, 

 254. 



Magnetism, terrestial, the report pre- 

 pared for the Antarctic Expedition, 

 177. 



Magnetometer, declination, 224. 



■ , horizontal force, 229. 



, vertical force, 235. 



Malcolmson (J. G.) on the old red 

 sandstone in the counties of Mur- 

 ray, Nairn, Banff, &c., 541. 



Mammalia, blood corpuscles in, 495. 



Mammoths, on bones of, found in the 

 sea, 538. 



Marchand (M.) on cinnamic and for- 

 mic ffithers, 251. 



Marine lightning conductors, on, 461. 



Marsh (J.) on dislinguishing arsenic 

 from antimony, 282. 



Marsh (Dr. H.), notice of, 523. 



Martin (Capt.) on bones of mam- 

 moths found in the English Chan- 

 nel and German Ocean, 538. 



Mathematical collections of Pappus, 

 on the, 85. 



Mathematics, Mr. Halliwell's collec- 

 tion of treatises on, 242. 



Meadow-leather, composed of infu- 

 soria, 66. 



Mellitic acid, 248. 



Melloni's paper on the polarization 

 of heat, in Scientific Memoirs, 

 part vi.. Prof. Forbes's letter re- 

 specting, 380. 



Merck (M.) on veratric acid, 253. 



Mercury, chloro-stannite of, 413; 

 arseniuretted and subarseniuretted 

 chloride of, 484 ; action of anti- 

 mony on bichloride of, 494 ; chlo- 

 rosulphuret of, 551. 



Meteorite, on the fall of a, 557. 



Meteorological observations made in 

 Colombia between 1820 and 1830, 

 13, 97, 169, 297, 508. 



, monthly, 



79, 80, ; 159, 160 ; 254, 255 ; 335, 

 336; 415, 416; 495, 496. 



Meteorology, instructions for taking 

 observations, 189, 200. 



Methylene, chloride or muriate of, 48 ; 

 "iodide or hydriodate of, 49 ; fluoride 

 or fluate of, 50; sulphate of, 86 ; 

 nitrate of, 88 ; oxalate of, 89 ; ace- 

 tate of, 90 ; formate of, 91 ; ben- 

 zoate of, 92 ; mucate of, 93 ; oxy- 

 chlorocarbonate of, 94 ; chlorocy- 

 anate of, 94 ; cyanate of, 94 ; acid 

 compounds of, 95. 



Microscopical Society, 549. 



Miller (Prof.) on the velocity of sound, 

 1 ; on the appearance of a lumi- 

 nous point, 459. 



Miller (Mr.) on the geology of Cro- 

 martie, 405. 



Mitchell (Dr.) on wells formed in the 

 gravel and London clay in Essex, 

 531. 



Morgan (H. K. G.) on the use of 

 the galvanic batteiy in blasting, 

 60. 



Moulting process in the cray fish, 

 331. 



Mountains, on determining the height 

 of, 311. 



Mucate of methylene, 93. 



MuUins (F. W.) on an improved con- 



