GEO 
Groxocy, North American. 
, ——, United States, New 
York, St. Lawrence and Jefferson 
Cos., J. B. Crawe and A. Gray, 
xxv, 346. 
; > ——, ——, Sullivan 
Co., xxiii, 2438. 
; ; ; , Taconic 
range, section of, to Troy, C. 
Dewey, ii, 246. 
; »lroy, M. 
Hale, iii. 72. 
’ ’ ’ ? Troy, 
gravel near, A. Eaton, v, 22. 
, ; , New Jersey, 
alluvial district of, with remarks 
on the marl, J. Pierce, vi, 237. 
‘ ; ; » second- 
ary region of, J. Pierce, ii, 
181. 
5 4 , cretace- 
ous formation, S. G. Morton, 
xxii, 90; xxiii, 288; xlvili, 265f, 
267. 
—., ——,, ibid, C. 
Lyell, xlvii, 213. 
; 4 ——., Hoboken 
serpentine rocks, T. N uttall, iv, 
16. 
. ; , Pennsylva- 
mia, coal regions and mines of, 
see Coal. 
5 western, 
S. P Hildreth KKK, O15 We V4, 
&e. 
Deg hte po) var arn ? Wyo- 
ming, &e., B. Silliman, xviii, 
309! ; xix, 1.f 
>— - near 
Easton, te Finch, viii, 236.f 
, hear Bed- 
(oa Springs, H. H. Hayden, xix, 
97. 
aig 
) near 
Westchester, tk Pin, ae 15. 
“ ; ; » mineral 
resources, J. Pierce, xii, 54. 
scenery, 
? , ’ 
XI, LO: 
? ? ’ ? 
proposed, xii, 173. 
survey 
105 
GE O 
Grotocy, North American. 
» ——, United States, Penn- 
sylvania, H. D. Rogers’s report 
noticed, xxxil, 192; xxxiv, 188; 
xxxvil, 380. 
; , Maryland, 
Appalachian chain in, W. #, A. 
Aitkin, xxvi, 219.f 
) » report 
on, J. T. enna and J. H. 
Alewvander, xxvii, 1; xxxii, 191. 
: ; ; » survey 
of, xxx, 393. 
i 5 3 sreport on 
the new map of, noticed, xxxii, 
191. 
A Bare 
Hills, weanBaltimore, H. H. Hay- 
den, xxiv, 349.f 
, ; , Virgimia, ac- 
count of part of, and ‘Tennessee, 
J. H. Kain, i, 60. 
i ' ibid, with 
parts of Alabang and Mississip- 
pi, E .Cornelius, i, 214, 317.f 
’ ) ) ’ coal 
mines and strata of, see Coal. 
gold 
——es 
9 9 ) 9 
mines of, see Gold. 
; ; , Kenawha and 
other western valleys, S. P. Hil- 
dreth, xxix, 83. 
A ; t , shell marl 
regions, J. Pierce, xi, 54. 
5 —.-, tertiary 
formation, W. ’B. and H. D. 
Rogers, xxxviii, 183. 
4 ; report on, 
of W. B. Rogers, noticed, xxxii, 
192; xxxvil, 380. 
5 ; ,N. and S. Car- 
olima, account of parts of, J. 
Dickson, iii, 1. 
, ‘ » ——, ibid, 7. 
D. Porter, iii, 227. 
; : » ——, gold re- 
gion, sce Gold. 
: , N. Carolina, 
basalt, basaltic dikes, (‘“ natural 
walls,”) and petrifactions, J. 
Beckwith, v,1. 
