647 



INDEX TO VOL. XXV. 



Acids : — panetic, 49 ; chloric, 76 ; me- 

 conic, 192; komenic, 196; benzoic, 

 283; auric, 315; purreic, 323; opi- 

 anic, 371, 395 ; hemipinic, 372 ; lactic, 

 453 ; hippuric, 459 ; giialtheric, 481 ; 

 aluminic, 483 ; ferric, 484 ; xanthope- 

 nic, 542. 



Agriculture, lines of inquiry connected 

 with the theory of, 384. 



Air, on the changes of temperature pro- 

 duced by the rarefaction and conden- 

 sation of, 148. 



Algebra, on a new system of imaginaries 

 in, 10, 489. 



Alkaloids, effects of nascent oxygen on 

 some, 152. 



Andrews (Dr. T. ) on the heat produced 

 during metallic substitutions, 93. 



Anoplotherium and Giraffe, on some fossil 

 remains of, 212. 



Arsenic, on the detection and quantitative 

 determination of, 255. 



Babo(M. von) on the detection and quan- 

 titative determination of arsenic, 

 255. 



Baumhauer (M.) chemical examination 

 of the seeds of Pb/telephas macrocarpa 

 and microcarpa, 543. 



Beaufort (Capt.) on a graphical method 

 of predicting occultations, 313. 



Becquerel (M.E.) on the laws which go- 

 vern the electro-chemical decomposi- 

 tion of bodies, 73 ; on the phosphoro- 

 genic rays in the spectrum, 111. 



Belli (Prof.) on the transmission of elec- 

 tric currents, 540. 



Bessel (Prof.) on meridional instruments, 

 227. 



Blood-corpuscles of Mammalia and Birds, 

 observations on the, 528, 538. 



Blyth (Dr. J.) on the composition of nar- 

 cotine and some of its products of 

 decomposition, 363. 



Bones, analyses of recent and fossil, 14 ; 

 on the occurrence of fluorine in, 123, 

 260. 



Booth (Dr. J.) on the rectification and 

 quadrature of the spherical ellipse, 18. 



Bowman (E.) on the measurement of di- 

 stances by the telescope, 141. 



Brewster (Sir D.) on colour-blindness, or 

 insensibility to the impressions of cer- 

 tain colours, 134. 



Brodie (Rev. P. B.) on the Stonesfield 

 slate of the Cotteswold Hills, 223. 



Bronwin (Rev. B.) on the variable ele- 

 ments of a disturbed planet and the 

 equations of its motion on the plane of 

 the orbit, 357. 



Brown (R.) on the geology of Cape Bre- 

 ton, 221. 



Caldecott (J.) on the solar eclipse of 1843, 

 311. 



Camera obscura (photographic), on a 

 combination of lenses for the, 173. 



Cautley (Capt.) on the osteological cha- 

 racters and pala;ontological history of 

 the Colossochelys Atlas, 532. 



Cayley (A.) on the transformation of 

 certain elliptic functions, 352. 



Charlesworth (E.) on the occurrence of 

 the genus Physeter in the red crag of 

 Felixstow, 215. 



Chemistry : — on tithonized chlorine, 1 ; 

 action of light on phosphorus, 8 ; ana- 

 lyses of recent and fossil bones, 14, 1 22, 

 260, 317 ; on parietine, 39 ; cyanides of 

 the metals and their combinations with 

 cyanide of potassium, 56; arsenites and 

 arseniates of iron, 74; on the chlorates, 

 76, 156, 235 ; bresiline and bresileine, 

 78 ; heat produced during metallic sub- 

 stitutions, 93 ; action of the sun's rays 

 onlithic acid, 142; purification of coal- 

 gas, 148 ; analysis of a porcelain clay 

 discovered near Dublin, 149 ; effects of 

 nascent oxygen on alkaloids, 152 ; hy- 

 druret of copper, 154 ; preparation of 

 the protoxide of gold, 157, 237 ; on 

 coal-gas, 161 ; decomposition of car- 

 bonic acid by the leaves of plants, 169 ; 

 on the meconates and komenates, 1 92 ; 

 hydrate of the oil of laurel turpentine, 

 200 ; on East Indian grass-oil, 201 ; 

 detection and quantitative determina- 

 tion of arsenic, 255 ; mannite in sea- 

 weeds, 262 ; preparation of benzoic 

 acid, 283 ; on the purple powder of 

 Cassius, 315, 392 ; on the oxides of gold, 

 315, 393; on some salts of iron, 319; 



