INDEX. 



557 



Debray (M.) on the preparation of 

 crystallized oxides, 5/. 



De la Rue (W.) on terephthalic acid 

 and its derivatives, 541. 



De Luca (M.) on a method of pre- 

 paring oxygen, 308. 



Deville (M. St.-Claire) on the prepa- 

 ration of some native sulphurets, 

 56 ; on certain phenomena of dif- 

 fusion, 61 ; on the artificial pro- 

 duction of certain minerals, 515. 



Diffusion, on some phenomena of, 61. 



Dove's (Prof.) theory of lustre, on 

 some experiments connected with, 

 38. 



Dufour (L.) on the solidification of 

 certain substances, 79 ; on the boil- 

 ing of liquids, 167. 



Duppa (B.) on boric ethide, 64. 



Electric cable, on the true and false 

 discharge of a coiled, 202. 



conducting power of copper and 



its alloys, on the, 545. 



currents, on the measurement 



of the intensity of, 529. 



light, on the influence of, on 



plants, 327 ; on the changes of 

 colour of, 528. 



resistance, on standards of, 195 ; 



on the measurement of, accord- 

 ing to an absolute standard, 226, 

 261. 



Electrolysis, of organic bodies, on the, 

 308 ; on the production of vibra- 

 tions and musical sounds by, 555. 



Energetics, on the principles of, 62. 



Equations, on linear indeterminate, 

 53.9. 



Equilibrium-figures of a liquid mass 

 devoid of weight, researches on, 

 286. 



Ethyle-bases, on the separation of 

 the, 477- 



Eye, on the sensibility of the, to 

 colour, 220. 



Faye (M.) on the existence of a re- 

 sisting medium and a repulsive 

 force, 458. 



Field (F.) on the silicates of copper 

 from Chile, 361. 



Foster (G. C.) on narcotine and its 

 products of decomposition, 398. 



Frankland (Dr.) on boric ethide, 64; 

 on the blue band of the lithium 

 spectrum, 472 ; on combustion in 

 rarefied air, 549. 



Friedel (M.) on lactic acid, 300. 

 Fumaric acid, on some decompositions 



of, 306. 

 Galton (F.) on meteorological charts, 



34. 

 Gases, on the propagation of heat in, 

 1, 85 ; on the movements of, 21 1 ; 

 on the radiation of heat by, 169, 

 273. 

 Geological Society, proceedings of 



the, 77, 164, 246, 324, 403. 

 Glennie (J. S. S.) on the principles of 



energetics, 62. 

 Glycol, on the conversion of, into 



alcohol, 135. 

 Gore (G.) on the properties of liquid 

 carbonic acid, 485 ; on the pro- 

 duction of vibrations and musical 

 sounds by electrolysis, 555. 

 Gorup-Besanez (M.) on the use of 



ozone for removing stains, 57- 

 Greg (R. P.) on new falls of meteoric 



stones, 107. 

 Griess (P.) on new compounds pro- 

 duced by the substitution of ni- 

 trogen for hydrogen, 75. 

 Gunpowder, on the composition of 



white, 58. 

 Gyrolite, analysis of, 326. 

 Gyroscope, on the, 396. 

 Haidinger (W.) on the phenomena 

 attending the fall of meteorites, 

 349, 442. 

 Hauer (K.) on the dihexahedral 

 crystals of sulphate of potash, 486. 

 Heat, on the propagation of, in gases, 

 1, 85 ; on the radiation of, by gases 

 and vapours, 169, 273. 

 Heath (D. D.) on lunar radiation, 



485. 

 Hexahedron inscribed in a sphere, 



notes on the, 382. 

 Hofmann (Dr.) on azobenzol and 

 benzidine, 70 ; on the monamines, 

 157 ; on anomalous vapour-densi- 

 ties, 158; on sulphamidobenza- 

 mine, 160; on oxide of triethyl- 

 phosphine, 241 ; on phospharso- 

 nium - compounds, 245 ; on the 

 phosphorus-bases, 385,^388, 392; 

 on the arsenic-bases, 473 ; on the 

 separation of the ethyle-bases, 477. 

 Holzmann (Dr.) on some cerium com- 

 pounds, 216. 

 Howe (Prof. H.) on gyrolite, 326. 

 Huut (T. S.) on the theory of types 



