N. 
aan xi, 277; nee ibid, 
xix, 
ais slates, T. S. 
Napoli, R., on Greeniaretied hyde vgen, and 
Me peiat sina to Toxicolozy, xviii, 190. 
Narcotin, “y kinds, ae Cage xiii, "260. 
Nasm e moc 
ier are Insitute, Waskingron, Proceedings] 
Neural sy Review, swe xviii, 392. 
Natural Philosophy, Coogee of, by W. H. 
€. Burtlett, noticed, x we, 452, 
Spee a Almanac. Davis's xiv, 317 
saptey sah BA ig ig tates, by C. B. Stu- 
fot 
Nebule, caiaiale ae oy Prof. S. Alerander, 
noti , 300. 
Necrol logy, see Obitua ary. 
Nees von Esenbeck, Eulogy and Herbarium 
of, xiv, 140, 
Neisler, H M., fructification of Arachis hy- 
ene ’ xix, 212, 
Nem . Girard on, 
pci Boreai-Amerieane e WW. H. Harvey, 
notice v, 1, xvi, 422 
Nerves, rate ¥ transmission of i impressions 
on, Xv 
oa New devexy Zine works, xiii, 430 
“Newport on the regnation uf the ovum in 
oi, a Eoicen. xvi, 393 
= York, Indian mounds of, E. G. Squier, 
omens of, Guyot, 
—e oF Prieasey. boom by xiii, 447. 
New land, birds of, xi, 102, 434. 
ny xiv, 
Nickel pass of, J. Nickles, xvi, 
pei pp XVili, 1, 
in magnetic ‘pyntes, M. H. Boye, x 
ores of, T.S. Hunt, xix, 417 
Nichidn Jen ea new oleciromagne, net, xv, 104, 330.| 
circular elec 
ro-magnets, xvi, 110 
use of magnet attraction in Picea: 
0! 
passivity of ‘aekel and cobalt, xvi, om 
permeabi “ae of metals to mercury, xv. 
xv, 109, 263, 413, 
99, 263, 406. , XVii, 113, 262, "412, xViil, 
ne 331, 431, xix, 103, 407, xx, 102, 253, 
Niepce sliochromics, 272. 
_ghgravings by the vapor of 
37. 
eusnilation of, by plants, xix, 128, 
mode of st sg Fo heapway nd, xi 412. 
INDEX, VOLS. XI—xXx, 
hg ee ghd Woe, gi of, xi, 256. 
green é, xii, 4 432. 
ae f, Fordos and Gélis, xiii, 114. 
Ni tap fain and nitrobenzin, a action 
alts of iron on, xix, 14. 
Nitroprussids xi, 
of s 
351, 
Noctuce, phosphoresce ence of, xvi, 6 
\North, E. D., on tonne with te an- 
gles of aperture, x 
n the bino cular ine? rescope xviii, 61. 
he F [bl onduras, xX, 
saeti 
Norton, J. P., on a new sand- bath with wir 
peered xii, 52. 
obituary notice of, xiv, 448 
iertons) W. A,, on Eriesson’s Caloric Engine, 
* petigiea variations of aaie needle, 
xix ee x, 26, . 
orton’ 8 iterary egister, XV, 
N. Carolina, coal and red ps jet of, xix; 
430. 
No lar distance, il recording 
&ierencesi in, O. i _ itchell, xiii, 1. 
Notation, on the A thod of, T. H. 
Me od, xix 
otornis, discove 
ery of a 
Nova 
Scotia, veal ope e 
sil r J, Leidy 79, 
repti an in gee rock: or xv, 27 
Nullipores, xi, 36% 
Nutmegs, cultivation of, tie 322. 
\Nyctaginacere, xv, 319 
Se 
oO. 
user, cross of merit to, xiv, 
290, 
, 292; Aikin, A- 
xx, 391; Arago, F., ee vii, 113; Au 
dubon, J. J., xi, 295. ide: Be 
Beaupré, Beautem iii, 1 
C., xvi, 149; Berar pi ie a reels, 
J., xvi, 1, 173, xvii, 
GW, xix, 129; Braconnot, vis 4195 5 Bas 
von, xv, 64, xvii, 1; Bur - 
XVill, 235, 
Condamine, xx, 393; Crosse, Andrew, 
x, 297; 
Dalyell, J. G., xi, 302; Davie Sa 
ix, 443 Deka ay, Wi E., 43; 
Beche, xx, 145: Delessert, B, xili, 105. 
Drake, DD SY, sae 291; Duvernoy; x4, 
Eliery Ys J G., 429; 
, xviii, 4295 
Fischer, of &. "Se Peterburg Frank- 
, W., xi, 143; Gandi chaud, xvii, 
a4 ; Gass 4; Golzehmit idt, C.W.By 
xx 
anal Peg vee, x, 3934 Hisinger, W. nit 230; 
Horaschuch, xiit, 45. een 
Jacobi, C.G. J., xii, 1435 goers pe 
on determining, 
— 136, x , 387; > 
ussieu, A. de, xvi, 42 xvii, 
Koeh, xiii, 45; Kénie, xii, 446 Kunth, 
C.8., xi ; Kunze, xiii, 49. 
Lallemand, xviii, 431; Lasse ee our 
xiii, 301; nt, A., XV re , 
See 45; ny Ze xi, 446, xiii, 4 
of 
113. 
a xa for Sulphur, Bailey, xi, 
94, 
EO REET) NRE ee : f 
ee ee eye ee ne oe ee ae 
a 
