MET 
Metals, letters on, permanent after 
fusion, xxv, 197. 
, reduction of, by azote, xix, 
371. 
, singular modifications of the 
ordinary action of nitric acid on,’ 
XXxill, 286. 
, solubility ef, in persulphate 
and perchloride of iron, J. NNa- 
pier, xlivill, 190. 
, hew, aurum millium, i, 363. 
, didymium, xiii, 404. 
, donium, xxxi, 163. 
; , erythronium, supposed 
new, xx, 386. 
> ——, lanthanium,xxxvii,192. 
; , pelopium and niobium, 
xlviil, 400. 
5 , ruthenium, xlviil, 401. 
‘ , selenium, i, 310. 
—, —, thorium, xvii, 381. 
—, , vanadium, xx, 386. 
, sulphurets, new method of 
precipitating, xlvii, 193. 
Metallic casting, vii, 190. 
decompositions by phosphu- 
retted hydrogen, xviii, 403. 
salts, C. Matteucci on the de- 
composition of, xx, 187. 
vegetation, il, 349. 
——- wires and springs, on temper-, 
ing, xx, 393. 
Metalliferous veins, course of, and 
origin, R. W. Fox, xxxi, 373. 
, electro-magnetic prop- 
erties of, xx, 1385. 
Metamorphic changes at the Lipari 
Islands, xxxiil, 77. 
agency, as indicated by cer-| 
tain crystals in some rocks in N. 
York, &c., L. C. Beck, xiv, 143;' 
xlvi, 333. 
changes in iron ore by trap! 
dikes, in Nova Scotia, xv, 212. 
by artificial heat in a 
sandstone, 7. Emmons, xlv, 146. 
—— by heat, through the 
medium of heated water, J. D. 
Dana, x\v, 104. 
’ 
>) 
—— 
160 
MET 
‘Metamorphic origin of granite, R. 
H. Bonnycasile, xxx, 245. 
—- granite, J. D. Dana, x\lv, 108. 
limestone, Carrara marble an 
instance of, xxx, 176. 
limestones, Maine, C.T. Jack- 
son, xxxvi, 146. 
rocks of N. Hampshire, 
| notice “of, “CID. Jackson axive 
145. 
‘Metamorphism, related to pseudo- 
morphism, xlviil, 92. 
, heated water an agency in, 
| B. Silliman, xliii, 247. 
Meteors, instances of some remark- 
able, D. Olmsted, xxvi, 1383. 
—— seen in Canada, April, 1840, 
XXXI1x, 383. 
seen in Connecticut, Dec. 
14, 1887, EL. C. Herrick, xxxvii, 
130. 
, at New Haven, 
March, 1813, S.L. Dwight,xiii,35. 
, at New Haven, 
March 31 and April 1, 1826, A. 
C. Twining, xi, 184. 
, at New Haven, 
May, 1840, xxxix, 382. 
—— at Boston and N. Haven, 
in Nov., 1841, xliti, 399. 
in England, Nov. 26, 
1758, xxxv, 231. 
, August 18, 1783, 
xxxv, 231. 
in Greece, xxxix, 381. 
in Illinois, in day time, 
Aug. 20, 1836, xxxili, 402. 
in Maine, Aug. 7, 1823, 
vil, 170. 
in Massachusetts, near 
Boston, October, 1689, xliii, 899. 
in New Hampshire, at 
Rochester, 1837, xxxiii, 200. 
in New York, ofa green 
color, Feb. 11, 1828, B. D. Sil- 
liman, xiv, 199. 
—— in North Carolina, at 
Fayetteville, xlix, 408. 
in Vermont, at Burling- 
, by dikes, J. D. Dana, 
xly, 113. 
ton, April 14, 1826, G. W. Ben- 
edict, xi, 120. 
