Bhi mM 
Elevation above the ocean of some 
heights in Ohio, Michigan, Penn- 
sylvania and New York, C. Whit- 
telsey, xlv, 12. 
ibid in western New 
York and of Lake Erie, C. Dew- 
ey, Xxxill, 122. 
in Wisconsin, 
I. A. Lapham, xlvi, 258. 
Elevation, Hopkins’ theoretical 
views respecting the geological 
phenomena of, xxxi, 369. 
of the ocean in western New 
York, during, xxxv, 86. 
, W. W. Mather on causes of, 
in rise of sedimentary rocks of 
United States, xlix, 284. 
,H. D. and W. B. Rogers, 
theory of, xliv, 360. 
of Ceylon, evidence of, vi, 
194. 
of the coast of Chili, xxviii, 
236; xxx, 110. 
and South Amer- 
ica, C. Darwin, xxxiii, 100. 
of the banks of the Missis- 
sippi, 1811, F. C. Usher, xxxi, 
294.f 
72, 387; xxix, 363. 
of the Scandinavian coast, L. 
Beamish, x\vii, 184. 
of Dominica, St. Christopher’s, 
St. Eustatia and Saba, West In- 
dies, indicated by raised coral 
reefs, iv, 218. 
Elizabeth Islands, vii, 240.f 
Elk of Ireland, iv, 246. 
, fossil bones of, in North Car- 
olina, xxvil, 170. 
Ellet, W. H., on the compounds of| 
cyanogen, xviii, 329. 
Ellipses, mode of drawing, S. De- 
Witt, xxiv, 369.f 
, on the rectification of, C. 
Wilder, xviii, 38.f 
Elliptic motion, T. Strong, xxx, 
248. 
-Elm-tree moth, parasite of the eggs 
of, XXXxviil, 385. 
80 
, G. E. Hayes, on the effects’ 
of Sweden, C. Lyell, xxviii,) 
END 
Elm-tree moth, destruction of the 
eggs of, by a parasite, E. C. 
Herrick, xi, 211. 
Embalming, remarks on the mode 
of, xii, 183. 
, J. IN. Gannal’s new process, 
xl OAs 
Emerald in Africa, ii, 354. 
Emerson, G. B., biographical notice 
of A. P. De Candolle, xlii, 217. 
Emery of Saxony, xxiv, 377. 
Emmet, J. P., on formic acid, xxxil, 
140. 
, ammoniacal salts, solvent and 
oxydating powers of, xvili, 255. 
, lodide of potassium a test for 
arsenic, xvill, 5S. 
, electro-magnetism and ther- 
mo-electricity, xxvi, 311. 
; , hew discoveries 
xxiv, 78.f 
in, 
: , cause ef currents in, 
xxvi, 23.f 
, solidification of raw gypsum, 
xxill, 209. 
, a mode of producing sparks 
and galvanic currents from the 
horse-shoe magnet, xxiv, 78.f 
Emmonite, supposed new mineral, 
T. Thomson, xxxi, 171. 
Emmons, E., birds of spring, time 
of appearance in Williamstown, 
Mass., 1831-838, xxvi, 208. 
, circulation in vegetables,xxvi, 
$9. 
, granitic veins and beds of 
Chester, Mass., viil, 250. 
, Grevilleanum serratum, anew 
species of moss, xi, 183.f 
, metamorphic changes by ar- 
tificial heat, in sandstone, xlv, 146. 
, rainmarks in the Potsdam 
sandstone, xlv, 316. 
, strontianite in the U. States, 
xxvii, 182. 
Enamel for porcelain, v, 189. 
Enamelled cast iron vessels in Bo- 
hemia, xlix, 400. 
Encroachment of the sea, near New 
York, W. W. Mather, xxxvi, 16. 
Endogenites, vii, 179. 
