sCcR 
Scoresby, W., magnetical investi- 
gations, xlviil, 33. 
, Improvements by, in magnet- 
ic apparatus, xxxiv, 398. 
Scotacks, tribe of,in Hungary, v,384. 
Scotland, population of, xxiv, 211. 
Scott spring, Virginia, analysis of, 
xliv, 409. 
Scratches, diluvial, caused by ice, 
according to L. Agassiz’s theory, 
xlii, 350. 
; , theory of, E. Hitch- 
cock, xli, 255. 
A , in the United States, 
xli, 174. 
systems, W. C. Redfield, ‘aly, 333. 
, on rocks, a few 
localities of, xvii, 408. 
; , in Maine, C. T. Jack- 
son, Xxxvi, 153. 
, in New Hampshire, 
O. P. Hubbard, xxxiv, 107. 
: , C. T. Jackson, 
——= 
aie. 
Hebron, XXil, 166. 
: , in western New York, 
G. E. Hayes, xxxv, 191. 
‘ ; 5 XXXvi, 39. 
—, —, ibid, C. Dewey, xliv, 
146. 
——— 
, on the rocks near New 
York city, J. E. Dekay, xvi, 357, 
; , on the rocks in Sulli- 
van Co., N. Y., W. A. Thomp- 
son, xxiii, 243. 
é , in Pennsylvania, H. 
D. Rogers, xiii, 180. 
: , in Ohio, (?) at San- 
dusky Bay, vi, 179. 
: , in Indiana, J. T. Plum- 
mer, xliv, 296. 
228 
—, belong to two, 
; 5 , on the rocks at 
SEA 
Scrope, G. P., descriptive arrange- 
ment of volcanic rocks, xv, 28. 
Sculpture, by Canova, iv, 371, 
389. 
Sea and land, relative level of, as 
regards the tides, xxxi, 335. 
» Waves, currents and tides, v, 
131. 
9 9 
der Ocean. 
, depth of, v, 130. 
: , hot determinable by 
the echo, C. Bonnycastle, xxxviii, 
161. 
——., deep soundings in, by the 
French ship Venus, xl, 407: 
, encroachments of, near New 
York, xxxvi, 16. 
, action of, xxi, 21. 
and land breezes, causes of, 
W. C. Redfield, xxxiii, 65. 
, remarkable agitations of, at 
the Sandwich Islands, 7. C. B. 
Rooke, xxxvii, 358. 
, Dead, level of, xl, 2133 xlii, 
214, 
: , analysis of the waters 
of, xiii, 395; xlviii, 10. 
; , accountof, J. D. Sher- 
wood, xlviil, 1. 
, see farther un- 
‘Sea-serpent, remarks concerning, 
J. Bigelow, ii, 147. 
, xi, 196. 
, on the existence of, xii, 3875. 
, XXVIII, 372. 
Sea-serpentism, history of, S. L. 
Mitchill, xv, 351. 
Seal, T., on beryl, iv, 39. 
Sealing wax, method of making, 
xxi, 150. 
‘ , in the rocks of the Al- 
legany range, xx, 124. 
Screws, manufacture of, in Con- 
necticut, 11, 208. 
Scrope, G. a on Volcanoes, re- 
view of, xii, 106. 
, letter to the editor on volca- 
noes in North America, xiii, 190. 
——,, improvement in, xxviii, 
148. 
, mode of separating 
from old letters, xxiii, 200. 
Seawater near Brighton, analysis 
‘of, G. Schweitzer, xxxviil, 12. 
, Black Sea, analysis of, xx, 
188. 
, quantity of salt in, C. Dau- 
beny, xxxvi, 188. 
, potash in, ii, 371. 
