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

 mina in solution of ammonia, 241 ; on 

 the cause of the efflorescence of lau- 

 monite, 555. 



Earth, on the secular and diurnal motions 

 of the crust of the, 67, 81. 



Ebehnen (M.) on the compounds of bo- 

 racic acid with aether, 75 ; on hydrated 

 boracic acid, 78 ; on sulphurous aether, 

 146. 



Einbrodt (M.) on xanthic oxide, 419. 



Electric current, on the physiological ac- 

 tion of the, 408. 



Electrical endosmose, observations on, 10. 



Electricity, galvanic, on the probable con- 

 duction of, through moist air, 361. 



Electrolysis, on the theory of, 92. 



Endosmose, observations on, 10; on the 

 cause of, 179. 



Equations, on certain criteria of imagi- 

 nary roots of, 32; on the integration 

 and transformation of certain differen- 

 tial, 494. 



Erythric acid, examination of, 265. 



Eudiometric combustions, on the forma- 

 tion of nitric acid in, 543. 



Faraday (M.) on the magnetic affection 

 of light, and on the distinction between 

 the ferromagnetic and diamagnetic 

 conditions of matter, 153, 249. 



Felsite, analysis of, 148. 



Fish, poisonous, effects produced by, on 

 the human frame, 128. 



Fleming (Dr. G. 0.) on motion in the 

 lumbar division of the spine in birds, 

 51. 



Flint, on the fossil remains of the Fora- 

 minifera discovered in the, 407. 



Fluids in motion, on the theories of the 

 internal friction of, 60. 



Fluor spar, on the occurrence of, in lime- 

 stone, 245. 



Food, vegetable, on the value of different 

 kinds of, 365. 



Foraminifera of the chalk and flint of the 

 south-east of England, 407. 



Forbes (J. D.) on the viscous theory of 

 glaciers, 49. 



Forces, analytical demonstration of the 

 parallelogram of, 223 ; on the compo- 

 sition and resolution of, 258. 



Fritzsche (M.) on the treatment of os- 



miuret of iridium, 420. 

 Frog, microscopical examination of the 



tongue of the, 271. 

 Gallo-nitrate of silver, action of, on io- 

 dized paper, 101. 

 Geographical Society of Paris, proceedings 



of the, 73. 

 Geological Society of Dublin, proceedings 

 of the, 67. 



INDEX. 375 



Geology of Scotland, Nicol's Guide to the, 

 reviewed, 550. 



Geometry, on the symbol V — 1 in, 171. 



Gerhardt (C.) on phospham and phos- 

 phatide, 563 ; on the action of nitric 

 acid on brucine, 568. 



Glaciers, on the viscous theory of, 49. 



Glass, improvements in the manufacture 

 of optical, 231. 



Glass tubes, on the graduating of, 99. 



Goodwin (Rev. H.) on the pure science of 

 magnitude and direction, 63. 



Griffin (J. J.) on the constitution of aque- 

 ous solutions of acids and alkalies, 289, 

 444. 



Guanine, on the properties and composi- 

 tion of, 420. 



Gun-cotton, on the electricity of, 500. 



Hail, microscopic observations on, 103. 



Hamilton (Sir W. R.) on quaternions, 26, 

 113,326; on the secular and diurnal 

 motions of the earth's crust, 71. 



Harcourt (Rev. W. V.), note to the letter 

 to Lord Brougham, 36. 



Haughton (Sir G. C.) on the relative dy- 

 namic value of the degrees of the com- 

 pass, 405. 



Hearn (G. W.) on a permanent state of 

 heat, 22 ; on the composition and re- 

 solution of forces, 258. 



Heat, on the permanent state of, in a thin 

 uniform wire, 22 ; on a new theory of, 

 50. 



, animal, on the source of, 407. 



Henwood (W. J.) on the superposition of 

 certain minerals in some of the metal- 

 liferous deposits of Cornwall and De- 

 von, 359. 



Hermann (M.) on the new metal ilme- 

 nium, 417. 



Herschel (Sir J. F. W.) on the diminu- 

 tion in brightness of j8 Ursce minoris, 

 230. 



Hculandite, analysis of, 556. 



Hind (J. R.) on the elements of the planet 

 Astraea, 57; on the double stars 8 Cygni, 

 y Leonis, &c, 230. 



Hofmann (A. W.) on nitraniline, a new 

 product of decomposition of dinitro- 

 benzole, 312. 



Homology, on the use of the word, 35. 



Hopkins (T.) on the meteorology of Bom- 

 bay, 467. 



Horsford (E. N.) on the value of differ- 

 ent kinds of vegetable food, 365. 

 Hydrocyanic acid, on the preparation of 

 pure, 566. 



Ilmenium, on the new metal, 417. 

 Iodine, on some new compounds of, with 



lime, 287. 

 Iris, on the muscularity of the, 53. 



