TAP 
Taconic mountains, character of, 11, 
246 ; viii, 2, 8. 
, geological section from, 
to Troy, C. Dewey, ii, 246. 
system, remarks on, D. D. 
Owen, xlvi, 145. 
, remarks on, H. D. Ro- 
gers, xlvi, 150. 
, work on, by EK. Em- 
mons, noticed, xlviii, 394. 
Tagua-nut, or vegetable ivory, xlix, 
400. 
Tails of comets, x, 395; xxxi, 142, 
325 -Oxxxlll Os les EXXXVANIO S| 
xl, 59; xlvi, 108.f 
Talbot, H. F., photogenic drawings, 
xxxvil, 169; xxxviii, 97. 
, improvement in the telescope, 
xliv, 166. 
Tale from Chamouni, analysis of, 
xlvii, 216. 
in Connecticut, x, 14. 
in Maryland, xiv, 12; xviii, 
79\5 xxiv, 3D5. 
in Massachusetts, 1, 113; it, 
2365 iv, 54; vil, 55. 
—— in New Jersey, v, 29. 
in New York, i, 144; v, 29; 
DA Dey PATI Pe hs 
in North Carolina, v, 259, 264. 
in Pennsylvania, i, 237; viii, 
239)s) x 219422 Le xiveronOnalese 
in Rhode Island, vii, 2543) 
vill, 227, 22): 
in Vermont, il, 76; iv, 54; 
v, 40. 
Talcose slate of the Connecticut 
valley, vi, 26. 
, the gold rock of the 
Carolinas, A. Eaton, xviii, 50. 
Tannin, memoir on, J. Pelouze,, 
xxvill, 124. 
Tanning, application of chestnut 
wood in, W. Sheldon, i, 312. 
~——, new process of, 1, 439 ; xxxv, 
303. 
Tantalite, see Columbite. 
Tapestries of Raphael, revival of 
their colors, xxxvii, 244. 
ae fossil, at Darmstadt, xxvl, 
258 
TCH 
Tappan, B., on the boulders of 
primitive rocks found in Ohio, 
MVaeeo de 
, on the cannel coal of Ohio, 
Xvill, 376. 
, description of some new 
shells, xxxv, 268.f 
Tar, used to afford light, i, 92. 
, used to work steam engines, 
i, 165. 
Tarapaca, South America, account 
of the minerals of the province of, 
J. H. Blake, xliv, 1.£ 
Tarlor, observations on mining, 
XXxiv, 9. 
Tartaric acid, manufacture of, at 
Glasgow, xli, 50. 
Taste, the seat of, xx, 180. 
Taurus Mountains, xxxvil, 351. 
Taxidermy, see Preservation. 
'Taxodon, R. Owen, xxxiii, 208; 
xxxv, 196. 
Taylor, J.,on Astronomy and Pho- 
tography at Rome, xliv, 373. 
Taylor, R. C., Indian mounds and 
earthworks in the form of ani- 
mal effigies, principally in Wis- 
consin, xxxiv, 88.f 
, model of the southern coal- 
field of Pennsylvania, xli, 80.f 
Taylor, Steuben, localities of min- 
erals, vi, 245. 
, account of a rocking stone, 
vil, 201. 
, localities of minerals, vil, 
253; vili, 225. 
Taylor, Stephen, on salt 1 
la, xli, 214: 
|Taylor, S., ancient mounds and 
other remains in lowa and Wis- 
consin, xliv, 21.f 
Taylor, W. C., on change of pop- 
ulation in New Zealand, xxxv, 
315. 
Taylor’s theorem, C. Bonnycastle 
on, xl, 42. 
, hew investigation of, T. 
Strong, xlv, 272. 
Tchihatcheff, P. de, memoir on the 
geological constitution of the Al- 
tai, noticed, xlix, 378. 
n Virgin- 
