LOND. AND EDIN. PHILOSOI'IUCAL MAGAZINE, 1832 1838. 47 



of British Insects, xii. 202 ; Agnew on 

 the Pyramids of Gizeh, xii. 379 ; Levy's 

 Description of Ileuland's Collection' of 

 Minerals, xii. 536. 



llhea Darwinii, xii. 450 ; Americana, xii. 

 450. 



Rhinoceros, vi. 151. 



Rhodizite, a new mineral, vii. 431. 



Richardson (M.) on the products of the 

 decomposition of cyanogen in water, 

 xii. 339. 



(W.), notice of the coast from Whit- 

 stable to the North Foreland, v. 219 ; 

 on selenite in the sands of the plastic 

 clay near Heme Hay, viii. 558. 



Riddle (Mr.) on the longitude of the 

 Edinl)urgh observatory, xii. 525. 



Rigaud (Prof.) on a curious deposition of 

 ice on a stone wall, ii. 190 ; life of Dr. 

 Halley, vi. 30G; on a note in the 

 Quarterly Review respecting Mr. Whe- 

 well, viii. 218 ; on Newton, \\'histon, 

 ■ Halley, and Flamsteed, viii. 220 ; on 

 the aurora borealis of Nov. 18, 1835, 

 viii. 350 ; inquiry rcLitive to Dr. Pem- 

 berton's translation of Newton's Prin- 

 cipia, viii. 441. 



Rigg (R.) experiments on the vinous, ace- 

 tous, and putrefactive fermentation, ix. 

 535 ; on analysing organic compounds, 

 xii. 31, 232. 



Riley (Dr.) on fossil remains of Saurian 

 animals, viii. 577. 



Riolite, viii. 261. 



Ritchie (Prof.) on the magneto-electric 

 phajnomena discovered by Dr. Faraday, 

 iii. 37 ; iv. 11 ; on the power of an 

 electro-magnet to retain its magnet- 

 ism, iii. 122, 145 ; experimental r^j- 

 seaiches in electro-magnetism, iii. 145 ; 

 on the rotation of closed voltaic cir- 

 cuits, iv. 13 ; on the detonation of oxy- 

 gen and hydrogen by a magnetic spark, 

 iv. 104; remarks on Mr. Christie's 

 Bakerian lecture, iv. 208 ; on magnetic 

 action, viii. 55, 242 ; researches in 

 electricity and magnetism, viii. 455 ; 

 on certain differences between the per- 

 manent and the electro-magnet, ix. 81 ; 

 on certain improvements in the mag- 

 neto-electric machine, ix. 223 ; on 

 Mr. Rainey's theory of magnetic re- 

 action, ix. 287 ; replies to Mr. llainey, 

 X. 57; to the Rev. J. W. MacGauley, 

 x. 1, 462; to the Rev. N. J. Callan, 

 X. 61 ; on Newton's rings and the fixed 

 lines of the spectrum, x. 183; on the 

 velocity of sound in air, and that re- 

 sulting from theory, x. 220 ; on the 

 electric spark and shock from a per- 

 manent magnet, x. 280 ; on the con- 



ducting powers of wires for electricity, 

 xi. 192 ; on the heat in metallic and 

 liquid conductors, xi. 193; notice of 

 the late, xii. 275. 



Rive (Prof. A. de la) notice of M. Nobili, 

 ix. 234 ; researches into the cause of 

 voltaic electricity, xi. 274. 



Roads, parallel, on the theory of, vii. 

 433. 



Roberts (Mr.) on a machine which ren- 

 ders objects visible while revolving 

 200,000. times in a minute, viii. 71. 



Robinson (Dr.) on the aurora of Nov. 18, 

 1835, viii. 236 ; on the determination 

 of the constant of lunar nutation, xii. 

 110. 



and Russell on the mechanism of 



waves, xii. 112. 



Robiquet (M.) on gallic acid, xi. 323. 



Robison (Mr.) on the improvement of 

 light-houses, ii. 221. 



Rocks, unstratified, relative position of 

 metallic deposits with regard to, i. 225 ; 

 Sihu-ian system of, vii. 46 ; ix. 489 ; 

 various kinds of, vii. 222 ; structure of, 

 vii. 320, 376, 445; on the jointed 

 structure of, ix. 6, 172; carboniferous, 

 of North America, ix. 127. 



Rocky mountains of N. America, heights 



• of, X. 78. 



Rodent animals, notes on several, ix. 68 ; 

 xii. 445. 



Rodgers (F. and E.) on certain metallic 

 cyanurets, iv. 91. 



Rofe (J.) on the geology of the neigh- 

 bourhood of Reading, v. 212. 



Rogers (H. D.) on the geology of North 

 America, vi. 64. 



Roos's (Hon. Capt. de) account of re- 

 covering the stores from the wreck of 

 the Thetis, iv. 363. 



Rose (C. B.) on the geology of West 

 Norfolk, vii. 171, 274, 370 ; viii. 28. 



— — (Gustav) on osmiridium from the 

 Ural, V. 101 ; on the formation of calc 

 spar and arragonite, xii. 465. 



(Heinric) on the evolution of light 



during crystallization, vii. 534 ; on the 

 combinations of ammonia with anhy- 

 drous salts, xi. 141 ; on a combination 

 of the anhydrous sulphiu-ic and sul- 

 phurous acids, xi. 321 ; on the detec- 

 tion of metallic chlorides in bromides 

 and iodides, xii. 136 ; on some new 

 compounds of chlorine, xii. 220; on 

 chloride of tungsten, xii. 461. 



Rosenberger's (Prof.) Ephemeris of Hal- 

 ley's comet, vii. 423. 



Ross (Captain), short account of his ex> 

 pedition to the North Pole, iii. 394; 

 on the position of the north magnetic 



