N DE X. 



559 



Mosling (M.) on bisulphide of ben- 

 zoyl, 303. 

 Muller (Dr. H.) on terephthalic acid 

 and its derivatives, 541. 



Naphthaline, on the solidification of, 

 79. 



Narcotine and its products of decom- 

 position, on, 398. 



Neumann (V.) on the maximum den- 

 sity of sea- water, 408. 



Niepce de St. Victor (M.) on a newly 

 discovered action of light, 405. 



Nitroform, researches on, 299. 



Nitrogen, on the substitution of, for 

 hydrogen, 75. 



Oxyethylenic bases, researches on, 

 304. 



Oxygen, on the preparation of, 308. 



Ozone, on some uses of, 57 ; obser- 

 vations on, 248. 



Phosphorus, on the solidification of, 

 79. 



bases, researches on the, 241, 



245, 385, 388, 392. 



Photographic micrometer, on a, 166. 



Plateau (J.) on the figures of equili- 

 brium of a liquid mass withdrawn 

 from the action of gravity, 286. 



Pohl (M.) on white gunpowder, 

 58. 



Potash, on the dihexahedral crystals 

 of the sulphate of, 486. 



Pouriau (M.) on the temperature of 

 the air and of the soil, 488. 



Radiation, remarks on, 377- 



Rain-gauge, on the deficiency of rain 

 in an elevated, 421. 



Refraction, terrestrial, on, 406. 



Rood (Prof. O. N.) on some experi- 

 ments connected with Dove's theory 

 of lustre, 38. 



Rosenthiehl (M.) on the action of 

 anhydrous sulphuric acid on com- 

 mon salt, 518. 



Royal Institution, proceedings of the, 

 147. 



Royal Society, proceedings of the, 64, 

 156,241,310,385,473,536. 



Rubidium, on the preparation, atomic 

 weight, and compounds of, 331. 



Rudorff (M.) on the freezing of saline 

 solutions, 552. 



Sabine (Major-General) on the laws 

 of the phenomena of the larger 

 disturbances of the magnetic de- 

 clination at Kew, 310; on the 



lunar-diurnal variation of the mag- 

 netic declination, 479. 



Saline solutions, on the freezing of, 

 552. 



Schiel (Dr.) on the atomic weight of 

 silicon, 517. 



Schischkoff (M.) on nitroform, 299. 



Schmitt (M.) on the conversion of 

 carbonic into formic acid, 299. 



Sea-water, on the maximum density 

 of, 408. 



Shaw (W. T.) on a new optical in- 

 strument, the stereotrope, 537. 



Siemens (Dr.) on standards of elec- 

 trical resistance, 195. 



Silicon, on the atomic weight of, 517- 



Simpson (Dr. M.) on cyanide of ethy- 

 lene and succinic acid, 66. 



Smith (H. J. S.) on linear indeter- 

 minate equations and congruences, 

 539. 



Spectrum of hyponitric acid, on the, 

 80. 



analysis, on the readings of the 



graduated arc in, 364. 



observations, chemical analysis 



by, 329. 



Stas(M.) on the atomic weights of 

 the elements, 138. 



Steam, on the surface-condensation 

 of, 397. 



Stereotrope, description of the, 537. 



Stoney (G. J.) on the amount of the 

 direct magnetic effect of the sun or 

 moon on instruments at the earth's 

 surface, 294. 



Strecker (Dr.) on the relations be- 

 tween guanine, xanthine, caffeine, 

 theobromine, and creatinine, 136. 



Succinic acid, on the synthesis of, 66. 



Sulphamidobenzamine, researches on, 

 160. 



Sulphur, on the solidification of, 79 ; 

 and aqueous vapour, on the action 

 of, at high temperatures, 521. 



Sulphuric acid, on monochlorinated, 

 518. 



Sun, on the direct magnetic effect of 

 the, on instruments at the earth^s 

 •surface, 294 ; on the circularity of 

 the disc of the, 532. 



Surfaces of the second order, on the 

 curves situate on, 35. 



Sylvester (Prof.) on tactic, 45, 144 ; 

 on a generalization of a theorem 

 of Cauchy on arrangements, 378. 



