NUM 
Northern lights, see"Aurora Bore- 
alis. 
Northwest passage, and Greenland 
ice, 1, 101. 
, £. Lea, x, 188. 
Northrop, B. F., fluid in hornstone, 
vil, 283. 
Norton, W.A., Treatise on Astrono- 
my by, noticed, xxxvi, 197. 
,on the tails of comets, xlvi,104.f 
Norton, J. P., analysis of Silliman- 
ite, xlvi, 882. 
Notices of books, see Works. 
Nova Scotia, short notice of the 
minerals of, xi, 176. 
——, mineralogy of, F. Alger, xii, 
227: 
——., geology and mineralogy of,C. 
T. Jackson and F. Alger, xiv,305, 
with a map; xv, 182!, 201; xxii, 
167. 
, fossils in the iron ore of, xv, 
201. 
, scientific excursions to, from 
Williams College, with an ac- 
count of the minerals and geolo- 
gy of, xxx, 330.f 
» fossils and fossil wood of, 
xxx, 339.f 
, grindstones, xv, 148 ; xxx,338. 
, coal, bituminous, xv, 149. 
, fossil trees, upright in the 
coal strata of, xlv, 358. 
, gas, from the coal mine of, 
xxx, 184. 
, coal and gypsiferous forma- 
tion of, xlv, 356. 
Novaculite, or whetstone of North 
Carolina, v, 262; xiv, 288. 
in Georgia, xvi, 185. 
in Ohio, xvi, 374. 
of Lake Memphremagog, Can- 
ada, v, 41, 406. 
Nucula, see under Zootocy, Mol- 
lusca. 
Nugent, geology of some West In- 
dia Islands, i, 140. 
Nulty, E., on formule for comets, 
xxxvili. 160. 
Number five, the most favorite of 
nature, xvi, 172. 
183 
OBI 
Numbers, interesting properties of, 
G. R. Perkins, xl, 112. 
, analysis of square, A. D. 
Wheeler, xxv, 87. 
Numerical faculties, theory of, vii, 
285. 
Nutation, new determination of, 
Peters, x\vii, 90. 
Nutmeg, in Singapore, xliv, 153. 
Nutriment of gelatine, xxii, 197. 
Nutritious matter from an acre of 
land cultivated with potatoes or 
wheat, Eli Ives, i, 297. 
Nutt, R., on the origin and exten- 
sion of prairies, xxiil, 40. 
, observations on the lower part 
of the Mississippi valley, xxiii, 49. 
Nuttall, T., plants collected in East 
Florida, v, 286. 
, Serpentine rocks of Hobo- 
ken, iv, 16. 
——., observations and geological 
remarks on the minerals of Pat- 
terson and the valley of Sparta, 
Nee Waieoo. 
, reply to H. Seybert, vi, 171. 
——, Botany of, noticed, xiii, 99. 
——, proposed work on birds, xx, 
——, , noticed, xxii, 178. 
, North American Sylva, noti- 
ced, xliv, 194. 
oO. 
Obesity, xxii, 194. 
Obituary of Adam Afzelius, xxxiii, 
211. 
—— J. Aldini, xxvii, 405. 
—— Duke of Atholl, xx, 307. 
—— R. Bakewell, xlv, 403. 
—— D. H. Barnes, xv, 401. 
Mark Beaufoy, xxviii, 340. 
John, Duke of Bedford, x1,219. 
—— Andrew Bell, xxiii, 370. 
E. T. Bennet, xxxii, 215. 
—— J. Bentham, xxiii, 370. 
Sir Charles Blagden, ii, 344, 
—— J. F. Blumenbach, xl, 219. 
Bode, xv, 177. 
—— E. Boethor, of Paris, y, 180. 
