INDEX. 



551 



.aammalia, on the development of 

 muscular fibre in, 299. 



Marcet (Dr. W.) on the immediate 

 principles of the excrements of man 

 and animals, 65. 



Maury (Lieut.) on the discovery of a 

 new asteroid, 152. 



Melloni (M.) on a new electroscope, 

 2/6. 



Mercury, on the limit of vaporization 

 of, 15/. 



and gold, on a new compound 



of, 458. 



Meteorological observations, 54, "9, 

 159,239,319,399, 479. 



Meyer (H.) on complementary- colours, 

 547. 



Mica of the Dublin, Wicklow and 

 Carlow granites, chemical compo- 

 sition and optical properties of the, 

 272. 



Microscopic test-objects, on the struc- 

 ture of certain, 56. 



Mineralogy, notes on, 40, 179, 248, 

 272, 354, 382, 452, 510. 



Minerals, on the artificial production 

 of, 315. 



Moon, on an appearance seen in the, 

 238 ; on the theory of the motion 

 of the, 201, 370 ; on the eccentri- 

 city of the orbit of the, 130. 



Mountains, on the computation of the 

 effect of the attraction of, 394. 



Muscular contraction, on the physical 

 theory of, 293. 



fibre, on the development of, in 



Mammalia, 299. 



Nile-mud, analyses of, 469. 



Nitro-sulphoxylolic acid, on the pre- 

 paration of, 455. 



Nitroxvlole, on the preparation of, 

 453. 



Nortlicote (A. B.) on the brine-springs 

 of Worcestershire, 27. 



Ocular spectres and structures as 

 mutual exponents, remarks on, 305. 



Optical researches, 327. 



Organo-metallic bodies, researches on, 

 539. 



Ovum of the Stickleback, on the im- 

 pregnation of the, 153. 



Oxygen, on the magnetic power of, 

 474. 



Pectolites, analysis of British, 248. 



Pendulum experiments, account of 

 some, 309. 



Phillyrine, analysis of, 78. 



Picoline, action of iodide of a;thvle 



on, 214. 

 Planets, on the perihelia and nodes of 



the, 472. 

 Pliicker (Prof.) on the nature of the 



so-called coercive force, 518. 

 Plumb-line, on the attraction of the 



Himalaya mountains upon the, in 



India, 231. 

 Polymagnet, description of the, 425. 

 Porism of the in-and-circumscribed 



triangle, on the, 513. 

 Potter (Prof.) on the interference of 



light near a caustic, and the phse- 



nomena of the rainbow, 321. 

 Pratt (Ven. J. H.) on the attraction 



of the Himalaya mountains upon 



the plumb-line in India, 231. 

 Probabilities, on certain propositions 



in algebra connected with the theory 



of, 165. 

 Pyridine, action of iodide of aethyle 



on, 219. 

 Quadrature of surfaces, theorems on 



the, 209. 

 Quaternions, on some extensions of, 



46, 280. 

 Radcliffe (Dr. C. B.) on the physical 



theory of muscular contraction, 



293. 

 Rainbow, on the phaenoinena of the, 



321. 

 Rankine (W. J. M.) on the general 



integrals of the equations of the 



internal equilibrium of an elastic 



solid, 301. 

 Ransom (Dr. W. H.) on the impreg- 

 nation of the ovum in the Stickle- 

 back, 153. 

 Regnault (V.) on the elastic forces of 



vapours in vacuo and in gases, at 



different temperatures ; and on the 



tensions of the vapours furnished 



by mixed or superposed liquids, 4. 

 Retina, on the optical anatomy of the, 



307. 

 Riess's (P. T.) Treatise on Frictional 



Electricity, reviewed, 150; on the 



action of non-conducting bodies in 



electric induction, 401. 

 Rotifera, on the structure, functions 



and homology of the manducatory 



organs in the, 47". 

 Royal Institution of Great Britain, 



proceedings of the, .'(09. 



