550 



INDEX. 



Laplace's analytical theory for the at- 

 traction of spheroids, 161. 



Lardner (Dr.) on the theory of railways, 

 377. 



Lawson (H.) on the solar spots as seen 

 May 15 and 16, 527. 



Lead, iodide of, remarkable property of, 

 405. 



Life, on the powers on which its func- 

 tions depend, 530. 



Light, on the formula for the dispersion 

 of, 116; experiments on the interfe- 

 rence of, 401 ; undulatory theory of, 

 420. 



Locomotive engines upon railway?, 135. 



Logarithms of unity, 252. 



LoUgo, a small nondescript, 299. 



Lubbock (J. \V.) on a property of the 

 parabola, 100; on the tides at the 

 Port of London, 528. 



"M. F. Aurora borealis of Aug. 10, 230. 



MacGauley (Rev. J. W.) on some re- 

 markable results of electro-magnetic 

 experiments, 452. 



Magnetic Pole, South, on the position 

 of the, 104. 



Magnetism : — magnetic stations, esta- 

 blishment of, 45; terrestrial, on ad- 

 vancing the knowledge of, 42 ; mag- 

 netic action of manganese, 65 ; mag- 

 netic reaction, 220, 287, 469; on 

 Capt. Back's magnetical observations, 

 523, 529. 



Magneto-electrical machine, improved, 

 120, 180, 222, 262, 360,452. 



Magnets, attractive power of, 72, 220. 



Manchester, geology of the vicinity of, 

 157, 241, 348. 



Manganese, magnetic action of, 65. 



Martin (Mr.) on the osteology of the 

 sea otter, 512. 



Mathematics : — vanishing fractions, 18, 

 92, 209; algebraic elimination, 28; 

 a property of the parabola, 100; on 

 such functions as can be expressed 

 by serieses of periodic terms, 161 ; on 

 the relative signs of coordinates, 249; 

 method of proving the law of gravi- 

 tation, 333, 370; remarkable para- 

 dox in the calculus of functions, 334, 

 443; logarithms, 252, 348; multipli- 

 cation of negative signs, 540. 



Matteucci (M.), notice of the late M. 

 Nobili, 234. 



Medical science, grants of money for 

 the advancement of, 314. 



Mercury, bibromide of, 148; iodide of, 

 optical properties of, 1 ; native, lo- 

 cality of, 155. 



Meteoric stones, on, 429. 



Meteorological observations, 79, 159, 

 239, 319, 399,544. 



Meteorological table; — for May, 80; 

 June, 160; July, 240; August, 320; 

 Sept., 400; Oct., 545. 



Meteors observed in India, 74. 



Methylene, new combinations of, 77. 



Microscope, polarizing, 288. 



Microscopic chemistry, on, 2, 10. 



objects, dried, 90. 



Mineral veins, 8, 387; method of imi- 

 tating, 229. 



Mineralogy: — antimonial copper, 149; 

 donium,a new metal, 1 56, 255; change 

 in the chemical character of minerals 

 induced by galvanism, 228 ; artificial 

 cry stals and minerals, 229, 537 ; com- 

 position of plagionite, 232; new 

 mode of analysis of closely aggregated 

 minerals, 76. 



Mitchell (Dr.) on the beds immediately 

 above the chalk near London, 356. 



Mib-aner, observations on the different 

 species of, 137. 



Monkeys, some remarks on, 303. 



Morgan (A. De) on the relative signs of 

 coordinates, 249. 



Moschus, Linn., two new species, 

 515. 



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

 neto-electrical machine, 120; on the 

 construction of voltaic batteries, 382. 



Murchison (R. 1.) on the fossil genera 

 Pseudammonites and Ichthyosiagonites 

 of the Solenhofen limestone, 32; on 

 the Silurian and other rocks of the 

 Dudley and Wolverhampton coaU 

 field, 489. 



Myrmecobitis, a new genus of mammi- 

 ferous animals, 520. 



Negro, on the brain of the, 527. 



Newport (G.) on the respiration of 

 insects, 532. 



Nitric °acid, its action upon iron, 53, 

 259.' 



Nixon (J.), heights of Whernside, Great 

 Whernside, Rumbles Moor, Pendles 

 Hill, and Boulsworth, 96. 



Nobili (M.), notice of the life and con- 

 tributions to science of, 234. 



Ocean, new method of taking deep 

 soundings in the, 185. 



Octopus, nondescript species of, 301. 



Ogilby (Mr.), remarks on several Mar- 

 iupialia, 70 ; on the opposable power 

 of the thumb in certain mammals, 

 and on the natural affinities which 

 subsist between the Bimana, Qiiadru- 

 mana and Pcdimana, 302; remarks ou 

 the Chironectcs Ya2wck, 510. 



