LOND. AND EDIN. PIf ILOSOPHICAL \fAGAZINE, 1832 1838. 31 



Iodides, metallic, action of chlorine on, 

 iv. 467. 



Iodine, its action on starch, iv. 313; prize 

 essay on, vii. 441; viii. ]2, 191; its con- 

 ducting power for electricity, viii. 130, 

 400; microscopic history of, ix. 13; 

 its action on organic salifiable bases, 

 ix. 76 ; electrical conducting power of, 

 ix. 450; protochloride and tercliloride 

 of, X. 430; preparation of, x. 498; its 

 action on the vegetable alkalis, x.500; 

 and strychnia, x. .501 ; and brucia, xi. 

 216 ; and cinchonia, >i. 217 ; and co- 

 deia, xi. 220; and morphia, xi. 218; 

 and quina, xi. 218. 



lodous acid, iv. 392 ; method of prepa- 

 ring, ix. 442. 



Ions, table of, v. 429. 



Ipoh or Upas poison, on tlie, xi. 193. 



Ireland, gold-workings of Wicklow, vii. 

 1 ; on the geological map of, vii. 480. 



Iridium, preparation of, v. 314; method 

 of dissolving, xii. 141. 



— — , osmium, and platinum, some triple 

 combinations of, ix. 232. 



Irkoutsk, on the mean temperature of, 

 ii. 1. 



Iron : — separation of the oxides of, i. 86; 

 action of sulphurous acid on the per- 

 salls of, ii. 75 ; decomposition of cy- 

 anuret of mercury by, vii. 78 ; iodide 

 of, vii. 156; absence of magnetism in 

 cast iron when in fusion, vii. 388 ; ma- 

 nufacture of pig iron, vii. 406 ; on pro- 

 tecting it from the action of salt-water, 

 viii. 128; xi. 544; action of nitric acid 

 upon, ix. 53, 57, 122, 259; periodide 

 of, ix. 79 ; peculiar voltaic condition 

 of, X.133, 172, 175, 267,276,425,428; 

 xi. 329 ; its conversion into plumbafro, 

 xi. 321 ; on the strength of hot and 

 cold blast cast, xi. 556; Carron, Devon, 

 North Welsh, Yorkshire, xi. 557 ; ela- 

 stic forces of, xi. 558 ; its action at a 

 high temperature on benzoic acid, xii. 

 460; on camphor, xii. 460; peculiar 

 voltaic condition of, xii. 48 ; protoxide 

 of, its action on protoxide of copper, 

 xii. 299. 



and copper, alloys of, vi. 81 ; sul- 

 phates of, action of oxalic action on, 

 ix. 155. 



and zinc, sulphuret of, vii. 79. 



. beams, on the strength and best 

 form of, i. 207. 



. cast, on the elastic power of, i. 74 ; 



the temperature of melting, i. 262; 



cohesion of, iii. 79 ; crystallized per- 



nitrate of, iii. 467. 



— ; — peroxide of, an antidote to arscnious 



acid, vi. 237. ' 

 . pyrites, crystallized, artificial, X. 158. 



Isodynamic lines, on the direction of the, 



xi. 258. 

 Isomorphnus substitution, on a case of, 



xii. 406, 407. 

 Isothermal lines, on, i. 431. 

 Ivory (J.) on the disturbing function, iii. 



459; on the equilibrium of fluids, v. 



454; astronomical refractions, vi. 142 ; 



on such functions as can be expressed 



by serieses of periodic terms, ix. 161 ; 



on ellipsoids, xii. 356. 

 Ixalus Probaton, xi. 124. 



JB. on the attraction of an homoge- 

 • neous ellip oid, vi. 203. 



J. H. N. on the juice of Eschscholtzia 

 Californica, vi. 77. 



J. J., new method of taking deep sound- 

 ings in the ocean, ix. 185. 



J. O. H., direct demonstration of the rule 

 for the multiplication of iiegative signs, 

 ix. 540. 



Jablonski on the chemical process of ve- 

 getable life, xi. 532. 



Jacob (Dr.) on fossil Polyparia, vii. 483; 

 on the mammary glands in the Ce- 

 tacea, vii. 507. 



Jacobson (M.) on the physical and the- 

 rapeutic properties of chromate of pot- 

 ash, V. 238. 



"Jamaica, flora of," xii. 26.3. 



Jamesonite, analysis of, x. 237. 



Jerboas and Gerbillas, on the, xi. 394. 



Jerrard (G. B.) on solving equations of 

 the fifth degree, vii. 202 ; on the trans- 

 formation of equations, vii. 478 ; on 

 the occurrence of the form ^, xii. 345. 



Jervine, a new vegetable base, xii. 

 29. 



Jloulouk, mean temperature of, i. 427. 



Jones (Capt.) on a cast of money current 

 among the Africans, xi. 132. 



(T. W.) on the ova of women, vii. 



209 ; on the retina and pigment of the 

 eye of Sepia Loligo, viii. 1 ; on the 

 first changes in the ova of the mam- 

 mifera in consequence of impregnation, 

 and origin of the chorion, xi. 93. 



Johnson (E. J.), magnetic experiments 

 on an iron steam-\essel, viii. 547. 



(Dr. H.) on a newly observed pro- 

 perty in plants, vi. 165 ; on the cause 

 of motion in plants, vii. 357 ; on the 

 divergence of plants, ix. 17. 



(G. H. S.), method of discovering 



the equations of caustics, vi. 37 2. 



Johnston ( Prof ) on iodic aether, ii. 4 1 5 ; 

 on the dimorphism of baryto-calcite, 

 vi. 1 ; on oxychloride of antimony, vii. 

 332 ; on the cause of certain optical 

 properties of chabasie, ix. 166; on the 



