270 Aurora Borealis of November 14, 1837. 
Observations on the magnetic needle at New Haven, (Conn.) during the 
great Aurora Borealis of Tuesday, Nov.14, 1837 ; by E. C. Herrick 
and A. B. Hate. 
Mean | Needle , Mean | Needle | Mean Needle Mean) Needle 
time. west. time. west. time. west. time. west, 
Ee ae SG Lk wo, Fee eg 
5 49 | 4 5716 193] 6 7 2\5 45|9 153| 5 22 
5116 22|4 0 4|5 50] +16 
53 | 5 25 23 | 3 48 915 50 17 | 6 30 
553} 6 50 fn. 26 | 3 10 12/6 184] 7 
*552 5 30 284] 4 133} 6 5 oe ae fee 
57 | 5 35 30 |.4 40 15 | 6 10 304} 6 0 
6 0/530 32 | 4 45 17 | 6 36 | 5 52 
23 | 4 30 35 | 4 45 21\6 5 47 | 5 45 
315 39 | 5 233) 5 55 52 | 5 58. 
A\ 5 45 40 | 5 15 3441 5 50| 564 5 10 
“AS 6 404) 5 41/5 15}10 1| 5 32 
+6 434| 4 35 45|}51 A| 5 45 
FESO 47|430]* *|* * 17 | 5 30 
74| 4 A5 49142519 9|8 15 22 | 5 30 
103| 4 15 504) 4 30 94) 8 30 38 | 5 22 
11 | 3 55 52 | 4 Ad IMax.10 | 9 47 | 5 37 
113, 4 3 5415 11/8 30]11 0} 5 45 
12 | 4 15 5541 5 15 124| 7 15 |Ceased to observe. 
16H) 4 4p 561530} 1316 45] ) 
19 | 5 10,7 015 401 — 148! 5 45 176 observations. 
needle was at its usual place.] 
The foregoing table will be examined with interest. It corres- 
ponds with the results of numerous observations made by the 
same gentlemen on other occasions, in shewing that the influence 
of the Aurora Borealis upon the magnetic needle is not uniform in 
producing a deflection in the same direction. In the London Phi- 
losophical Transactions, for 1832, Mr. Faraday has demonstrated 
the fact of a necessary tendency of electricity from the equator 
of the earth towards the poles, in consequence of the diurnal rota- 
tion. Without an escape of the electric fluid from the northern 
latitudes, it is obvious that such a tendency, however great, would 
be a tendency only ; without producing any actual flow of elec- 
* Splendor fading. t Going east rapidly. t Going west rapidly. 
