574- 



INDEX. 



Iron, preparation of the protiodide of, 

 240 ; action of ferrocyanide of potas- 

 sium on the tartrate and citrate of, 421. 

 and cyanogen, on the blue com- 

 pounds of, 156. 

 Isomorphism, on some remarkable disco- 

 veries in, 246. 

 Johnson (P. N.) on a process for extract- 

 ing the palladium which exists in com- 

 bination with the gold of the Gongo- 

 socho and other mines in the Brazils, 

 130. 

 Jones (Dr. II. B.) on the chemistry of 



the urine, 53. 

 Kemp (Dr. G.), analytical investigation 



of the potato disease, 65. 

 Kosmann (M. C. Ph.) on the preparation 

 and properties of digitoleic acid and its 

 salts, 147. 

 Kolbe (Dr.) on the formation of nitric 

 acid in eudiometric combustions, 543. 

 Lampic acid, on the nature of, 353. 

 Lassaigne (M.), analysis of a calcareous 

 rock on which fuci and varechs vege- 

 tate, 238 ; on a fossil resin found near 

 Eu, 243. 

 Latham (Dr. R. G.) on the science of 



phonetics, 183. 

 Laumonite, on the cause of the efflo- 

 rescence of, 555. 

 Laurent (M.) on the action of nitric acid 



on brucine, 568. 

 Lee (Dr. R.) on the nervous system of 



the uterus, 129. 

 Lefort (M.) on the preparation of vale- 

 rianate of zinc, 422. 

 Le Verrier (M.) on the existence of a 



planet exterior to Uranus, 522. 

 Levol (M.) on the bibasic arseniate of 

 ammonia and magnesia, 243 ; on the 

 easy reduction of chloride of silver, 

 556. 

 Light, on the aberration of, 6, 62, 425 ; 

 on the magnetic affection of, 153, 249 ; 

 on the theory of, 185 ; on a new pro- 

 perty of, 331 ; on the modulatory theory 

 of, 337. 

 Lime, test for the bicarbonate of, 420. 

 Lowe (E. J.) on some remarkable solar 

 halos seen on the 19th of October 

 1816,440. 

 Loxoclase, description and analysis of, 



150. 

 Ludersdorff (F. M.) on the nature of 



yest, 334. 

 Magnesia, on the bibasic arseniate of am- 

 monia and, 243. 

 Magnetic affection of light, observations 



on the, 153, 249. 

 Magnetic meridian, on the cause of the 

 needle resting in the, 405. 



Magnetism, terrestrial, contributions to, 

 130. 



Main (Rev. R.) on the reduction of the 

 sextant observations of the distance of 

 the great comet of 1843, 57. 



Malaguti (M. J.) on the solubility of alu- 

 mina in solution of ammonia, 241 ; on 

 the cause of the efflorescence of lau- 

 monite, 555. 



Mallet (R.) on some secular and diurnal 

 motions of the earth's crust, &c, 67. 



Mantell (Dr. G. A.) on the fossil remains 

 of the soft parts of Foraminifera disco- 

 vered in the chalk and flint, 407. 



Marguerite {M.) on a method of deter- 

 mining the quantity of tungstic acid, 

 333. 



Matter, on the ferromagnetic and dia- 

 magnetic conditions of, 153, 249. 



Matteucci (C.) on the physiological action 

 of the electric current, 408. 

 . Meikle (H.) on the theory of parallel 

 lines, 112. 



Metals, new, 409, 417, 556. 



Meteorological observations, 79, 151, 247, 

 335,423,569. 



Meteorology, observations on certain 

 points of, 467. 



Meteors, on two extraordinary, 176. 



Methylene, protoborate of, 77. 



Mica, on a remarkable property of, 25. 



Mineralogy : — examination of cryptolite, 

 31; struvite, 124; felsite, 148; copper 

 blende, 149; loxoclase, 150 ; fossil re- 

 sin, 243; tantalite, 409; yttro-ilmenite, 

 417; talc, 555 ; steatite, ib.; laumonite, 

 ib. ; heulandite, 556. 



Minerals, on the superposition of certain, 

 in some of the metalliferous deposits of 

 Cornwall and Devon, 359. 



Mucus, on the origin of, 397. 



Muspratt (J. S.) on nitraniline, a new 

 product of decomposition of dinitro- 

 benzole, 312. 



Napier (J.) on electrical endosmose, 10 ; 

 on the unequal decomposition of elec- 

 trolytes, and the theory of electrolysis, 

 92. 



Nasmyth (J.) on the manufacture of opti- 

 cal glass, 231. 



Negro, on the desquamation and change 

 of colour in a, 131. 



Nesbitt (J. C.) on an improved method 

 of detecting alumina, 145. 



Newton's letters to Oldenburg and Boyle 

 respecting his theory of light and co- 

 lours, 185. 



Nicol's (J.) Guide to the Geology of Scot- 

 land, review of, 550. 



Niobic acid, on the properties of, 412. 



Nitraniline, on the composition of, 312. 



