AUR 
Aurora Borealis in summer, July, 
1830, M. Field, xx, 262. 
, July, 1837, xxxiil, 
, 144, 212. 
143 
— , August, 1844, E. 
C. Herrick, x\viii, 319. 
corona, position of, in 
several auroras, A. C. Twining, 
XXXxil, 227. 
Bde Jae 
exander, September, 1839, xxxix, 
364. 
— 22D: “Olin: 
sted, Jan., 1887, xxxil, 177. 
d , ibid, Nov., 
1835, xxix, 389. 
nko ©. Elen. 
1839, xxxvill, 260. 
é , C. Dewey, 
1839, xxxvili, 147. 
, needle agitated by, MV. 
Arago, xiv, 107; xxxiv, 286. 
,remarkson, 
rick, Sept., 
Sept., 
xix, 246. 
——, Aug., 1827, 
10,0), Cale. XV, 199. 
—— : ——, Apr.,1831, 
J. Henry, xxii, 143. 
——, MayandJu- 
ly, 1833, vAns iD: Bache, XXVil, 
113. 
——— 
, Feb., 1835, 
M. Gauss, xxxiv, 285. 
‘ , Nov., 1835, 
xxix, 390. 
, April, 1836, 
J McCaffrey, XXXI, 85. 
: , Jan., 1887, 
xxxil, 179. 
, July, 1837, 
EC: Henmich xxxill, 146. 
—_— —, “Noes. 1837, 
ARB: ele XXXIV, 270. 
— —., Sept. 1889, 
IB. (Or, Fema Xxxvill, 261. 
, May, 1840, 
? 
Canada, xl, 337. 
, Wide extent of some, 
FE. C. Herrick, xxxiii, 300. 
, remarks on the num- 
ber seen in Europe, xxviii, 58. 
21 
AUR 
[Aurora Borealis, remarks on the 
nature of, by the Ex-King of 
Sweden, v, 178. 
j ibid, Thienemann, 
x, 187. 
—, Moyles s.dhicy 6 Mel © 
xvi, 290; xix, 235. 
- ibid, Hansteen’s 
views, xiv, 109. 
> —— ibid, Ideler’s 
views, xxviil, 289. 
ibid (i: Ji) Ross, 
xxix, 348. 
‘ ibid, B. F. Jos- 
lin, attributing it to crystallized 
vapor, xxx, 390; xxxv, 145. 
4 DDG peek A aioe 
Barnard, xxxiv, 284. 
: ibid, D. Olmsted, 
xxxil, 180. 
> ——, Mr. Rowall’s the- 
ory of, xli, 41. 
, height of, M. Mairan, 
xxxiv, 288. 
, —,M. Farquhar- 
son, xxxiv, 288. 
‘ , D. Olmsted, xxxiv, 
286. 
; ——, M. Warimann, 
XXxiv, 288. 
> ——, M. Dalion,xxxiv, 
288. 
, Dr. Richardson 
of Capt. 'Franklin’s Expedition, 
xxxiv, 289. 
, noises of, an illusion, 
Capt. Scoresby, xxviii, 58. 
‘ , ibid, D. Olmsted, 
xxxiv, 289. 
—- , periodical, 
sted, xxxil, 177. 
, no polarization by light 
of, J. Henry, xxxix, 366. 
, work by Mairan, al- 
luded to, xxix, 3888 5 xxxii, 177. 
Auroral cloud of Dec., 18385, A. 
C. rica Me BT and position 
Fin erode Pall7 
Auroral arch of Aug. 
g., 1836, A. 
D. Olm- 
C. Twining, height and position 
of, xxxii, 220. 
