601 



INDEX to VOL. XIX. 



Ac IDS : — cinnamic, action of peroxide of 

 lead on, 38 ; mellitic, 41, 598 ; euchronic, 

 43 ; nitro-naphthalic, 46 ; campholic, 

 47 ; bromic, 48 ; hydrobromic and hy- 

 driodic acids, 92 ; nitro-saccharic, 94 ; 

 experiments with muriatic, 181 ; ni- 

 trous and hyponitrous salts of lead 

 formed by, 186; chrysanilic, 191 ; an- 

 thranilic, 192; catechinic and pyroca- 

 techinic, 194; chlorindoptenic, ib. ; sul- 

 phuric, 251, 327, 502; nitric, 252,327; 

 prussic, 281 ; malic, 306 ; hydrochloric, 

 328 ; lactic, 333 ; carbonic,343 ; guaiaic, 

 413; succino-hyposulphuric, 447; ac- 

 tion of sulphuric, on protosulphate of 

 iron, 502 ; acid cyanurate of potash, 517. 



Aden, on the geology of, 174. 



iEfher, formic, preparation of, 334 ; per- 

 chloric, 370. 



.ftkhule, perchlorate of the oxide of, 370. 



./Ethyl, fumarate of oxide of, 313. 



Africa, western coast of, spontaneous evo- 

 lution of sulphuretted hydrogen in the 

 waters of the, 1, 8. 



Agates, moss, on, 542. 



Air, resistance of the, to an oscillating 

 sphere, 63, 143 ; new method of investi- 

 gating the, 229 ; composition of, 344. 



Air-pump, on an improvement in the, 59. 



Airy (G. B.) on the resistance of the air 

 to an oscillating sphere, 63, 143, 229 ; 

 on a remarkable magnetic disturbance 

 recently observed at Greenwich, 505. 



Algebraic fractions, calculations of loga- 

 rithms by means of, 479. 



Alkalies and earths, double cyanurets of 

 zinc with, 282. 



Alum, on a new, 93. 



Ammonia, action of high temperature on 

 mellitate of, 41 ; of sulphuric acid on 

 nitrate of, 251 ; action of, on glowing 

 charcoal, 281 ; composition of, 344. 



Andrews (Dr.) on the heat developed 

 during the combinations of acids and 

 bases, 183. 



Anhydrite, form and optical constants of, 

 177. 



Anilm, on, 191. 



Animal tissues, non-vascularity of cer- 

 tain, 160. 



Animals, mammiferous, on the ova of, 240. 



Antarctic expedition, geological specimens, 

 birds and plants collected on the, 157 ; 

 meteorological observations, ib. 



Anthranilic acid, 192. 



Phil. Mag. S. 3. Vol. 19. No. 127. 



Antimony, action of copper on, 481. 



Apjohn (Dr.) on the composition of py- 

 rope, 594. 



Armstrong (W. G.) on the electricity of 

 effluent steam, 25. 



Arragonite, -on a specimen of artificial, 

 330; analysis of, 331. 



Arsenio-sulphurets, on, 283. 



Astronomical Society, proceedings of 

 the, 241, 325, 547 ; 21st General An- 

 nual Meeting, 544; address of the Pre- 

 sident, 562. 



Atmosphere, analysis of the, from some 

 of the Cornish mines, 359. 



Aurora borealis, on the, 579. 



Austin (Thos.) on the elevation of land on 

 the shores of Waterford Haven, and geo- 

 logical structure of the district, 318. 



Azote, exhalation of, by animals, 463 ; ex- 

 istence of, in plants, 459. 



Bailey (T.) on the gravel deposits in the 

 neighbourhood of Basford, 525. 



Baily's (Mr.), postscript to his report on 

 Maclear's pendulum experiments, 243. 



Ball (Mr.) on the sturgeon of the Dublin 

 markets, 591. 



Ballinvalley, discovery of gold at, 28. 



Barometer, on the course of the diurnal 

 fluctuations of the, 590. 



Barry (Dr. Martin) on the corpuscles of 

 the blood, partiii. 517, 597. 



Barytes, malate of, 312. % 



Bas Boulonnais, geological structure of the, 

 321. 



Basford, on the gravel deposits in the 

 neighbourhood of, 525. 



Beard's patent for improvements in appa- 

 ratus for obtaining likenesses and re- 

 presentations of nature, &c, notice of, 

 405. 



Benzoyl compounds, on some, 449. 



Berzelius (Baron) on a new method of 

 determining nitrogen, 278. 



Biaxal crystals, form of the black cross 

 in, 305. 



Binary star, on a new, 241. 



Birt ( W. R.) on a paraselene witnessed on 

 May 6, 1841, 50. 



Bismuth, action of copper on, 482. 



Blood, on the corpuscles of the, 517, 597. 



Booth (Prof.) on a new theorem in the 

 calculus of finite differences, 125 ; on a 

 statement in the Traite de Mecanique 

 of Poisson, 287 ; on the rotation of a 

 rigid body round a fixed point, 432. 



Suppl. Jan. 1842. 2 R 



