IovpD 
Iodide of azote, preparation of, 
Serullas, xvill, 154. 
of calcium and potassium, xvii, 
ive 
of lead, decomposition of, xv, 
188. 
Jodine, ili, 386. 
, acidification of, by nitric acid, 
xxi, 376. 
, atomic weight of, J. J. Ber- 
zelius, xix, 383. 
, crystallization of, xvii, 168. 
—, , W. W. Mather, xviii, 
84.f 
, action of, on the protochlo- 
ride of mercury, xvi, 395. 
, a reagent for hydro-sulphuric 
acid, A. du Pasquier, xl, 123. 
, used as a dye, xv, 394. 
——, medical uses of, iii, 386; vi, 
383. 
196. 
of tincture of, xx, 
, ibid, in a report 
by. Dumeril and Magendie, xh 
386. 
; , in Anguina pec- 
toris, xx, 411. 
5 , in causing dis- 
appearance of the breasts, xi, 
395. 
: , in gout and An- 
guina pectoris, xvi, 176. 
; , as a cure for the 
goitre and scrofula, v, 387. 
, occurrence of, in coal, Bus- 
SY, xeuide 
ane bromine in mineral wa- 
ters, remarks on, C. Daubeny, 
xxi, 366. 
in a mineral spring in Italy, 
vii, 387. 
in the Saratoga mineral water, 
xvi, 217; J. H. Steel, xvi, 242. 
in the Kenawha waters, xvill, 
260. 
and bromine in the salt springs 
of Athens, Ohio, W. W. Mather, 
xlix, 211. 
in plants and mosses, xlv, 227. 
in sponges, ii, 363. 
130 
I RO 
Iodine in an ore of zinc, xvi, 389. 
, cyanide of, a mode of obtain- 
ing, xill, 181. 
» fluoride of, H. B. Leeson, 
xlix, 205. 
and phosphorus, heat from, 
xxvii, 200.. 
and oxygen, new compound 
of, (hyperiodic acid) xxviii, 141. 
Iolite, analyses of, xlvi, 383. 
, in Connecticut, xxii, 389. 
, in Massachusetts, xxxiil, 399. 
——, decomposed varieties of, C. 
U. Shepard, xli, 354. 
Iowa, mounds of various imitative 
shapes in, S. Taylor, xliv, 21. 
Ipecacuana, analysis of, xvii, 385. 
Ireland, geographical distribution of 
plants in, xxxi, 367. 
Iridium, method of obtaining, from 
the platinum residue, F. Wohler, 
xxvi, 371. 
, means of obtaining pure, 
Fremy, xlviii, 185. 
Iris, affords a good test liquor, v,408. 
Iris Duerinckii, xlv, 176. 
lacustris, iv, 57. 
Iriscope, Reade’s experiments with, 
xl, 334. 
Iron, action of, on ammonia, xvill, 
146. 
, action of air and water on, 
Mallet, xliv, 355. 
, steel and cast iron, remarks 
on, xxxvill, 121. 
, method of bronzing, xxx, 178. 
——. of browning, 1x, 168. 
» cementation of, by carburet- 
ted hydrogen, xxviii, 362. 
, cold short, method of purify- 
ing, xxx, 173. 
, chlorine in, C. U. Shepard, 
xliii, 359. 
, corrosion of, by salt water, 
xxxill, 286. 
when cutting, action of, in mo- 
tion, on tempered steel, ix, 324 ; 
x, 1273; xi, 384. 
, deoxidation of the salts of the 
peroxide of, C. F. Schénbein, 
xlix, 2038. 
