601 



INDEX TO VOL. XX. 



AbICH(M.) on the constitution oiande- 

 sine, 530. 



Acids: — citric, 33; anthranilic, 35; in- 

 digo-sulphuric, ih. ; purpuro-sulphu- 

 ric, ib. ; indigotic, (6. ; picrinnitric, ib. ; 

 chlorisatinic, i6. ; isatinic, 36; pheno- 

 sulphuric, 37 ; chlorophenesic and chlo- 

 rophenisic, ib. ; nitrophenesic, ib. ; dra- 

 conic, ib.; nitro-draconassic and nitro- 

 draconessic, i4. ; sebacic, 168 ; enchroic, 

 1G9; lithol'ellic, 171; preparation of 

 hydrocyanic, 267 ; chromic, 343, 393; 

 chrysanilic, 445 ; benzoic and hippu- 

 ric, 501 ; nitric, 529 ; hydrobromic and 

 hydriodic, ib.; phosphoric, 530. 



Adie (R.) on a new instrument for ob- 

 serving temperatures and the dew- 

 point, 172. 



Aim^ (M.) on gases disengaged by marine 

 plants, 74. 



Airy (G. B. ) on the laws of the rise and fall 

 of the tides in the river Thames, 163. 



Albumen, constitution of, 412. 



Alexander (Capt.) on the annual destruc- 

 tion of land at Easton Bavent Cliff, 57. 



America, North, on the unexplored coast 

 of, 488. 



American Philosophical Society, proceed- 

 ings of the, 67. 



Andesine, analysis of, 530. 



Animals, contributions to the minute ana- 

 tomy of, 480. 



Antarctic expedition, notice of the disco- 

 veries made by the, 141. 



Antimony, method of preparing the pure 

 oxide of, 223 ; on the detection of mi- 

 nute quantities of, 403. 



Aphrodite, analysis of, 534. 



Armstrong (W. G.) on the cause of the 

 electricity of effluent steam, 5. 



Arsenic, on the detection of minute quan- 

 tities of, 403. 



Atomic weights, on the revision of, 341. 



Atmosphere, on the constitution of the, 

 197, 278. 



Atmospheric air, analysis of, 339. 



currents, on the influence of, upon 



the hciglit of the barometer, 475. 



— — refraction, remarks on, 310. 



Barometer, on the influence of atmo- 

 spheric currents upon the height of 

 Phi/. Mag. S. 3. Vol. 20. No. 1 



the, 475 ; horary deviations of the, as 

 observed at Plymouth, 477. 



Barry (Dr. M.) on fibre, 321, 344. 



Bauer (F.), notice of the late, 248. 



Benzoic acid, conversion of, into hippuric 

 in the animal oeconomy, 501. 



Berlin (M.), analysis of aphrodite, 534. 



Berthier(M.) on native bromide of silver, 

 77. 



Birds, on the lymph-globules of, 480. 



Booth (J.) on the rotation of a rigid body 

 round a fixed point, 10 ; on the vo- 

 lume of a segment of a surface of the 

 second order bounded by parallel planes, 

 472. 



Bolley (Dr.) on the compounds of bichlo- 

 ride of tin with the alkaline chlorides, 

 33. 



Bowman (Mr.) on the structure and use 

 of the Maipighian bodies of the kidney, 

 509. 



Bowman (Mr.), notice of the late, 546. 



Boys (Rev. T.) on the steam-wave, 507. 



Brett (R. H.) on the alleged conversion of 

 carbon into silicon, 24 ; on detecting mi- 

 nute quantities of arsenic and anti- 

 mony, 403. 



Bright (R.), notice of the late, 523. 



Bromideof silver, occurrence of native, 77. 



Brown (W. jun.) on the influence of at- 

 mospheric currents upon the height of 

 the barometer, 475 ; en the differences 

 of the mean pressure of the atmosphere 

 on different latitudes, 469. 



Bryce (J.) on the discovery of the Ich- 

 thyosaurus in Ireland, S3. 



Buch (L. v.), award of the WoUaston medal 

 to, 541. 



Buckland's (Prof.) address delivered on 

 the anniversary of the Geological So- 

 ciety, 418, 513. 



Bunsen (Prof.) on the radical of the ca- 

 codyl compound, 343, 382 ; on cacody 

 compounds containing platinum, 395. 



Cacodyl compounds, on the radical of the, 

 382, 395. 



Cancrinite, analysis of, 444. 



Carbon, on the alleged conversion of, into 

 silicon, 24. 



Carven and carvncrol, properties and mode 

 of obtaining, 3S. 

 34. Suppl. July 1842. 2 S 



