112 



1850. 



Mar. 5 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



April 1 



2 



3 



4 



5 



6 



7 



10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 



Clear. 



Ov't ; 



Ov't. 



Clear. 



Ov't. 



Clear. 



HerricJc's Auroral Register. 



No A.B. to lOi^. 

 copious rain. Obs. impos. to 10'^, and doubtless all night. 

 Obs. impos. to 10^, and probably all night. 



No A.B. to IQi^. 

 Obs. impos. to 9^^^ 



A.B., slight.* 



(382) 

 [A.B. seen to 10'^. 

 M'y ov't : obs. n'y impos. below alt. of 40° to ^^ ; clearer after: no 

 Ov't and i-ainy. Obs. impos. to 10^, and doubtless all night. 

 Clear. No A.B. to lO''. Within doors from 7^ to 9^ 

 Clear. No A.B. to 91^. 



Obs. impos. to 9*^, and doubtless all night. 

 Obs. impos. to 8'\ and doubtless all night. 

 Obs. impos. to 10'\ and doubtless all night. 

 Very clear. Moon. No A.B. seen to 10*^. 

 Clear. Moon. No A.B. seen to 10^. 



At 9*^ N. ov't, and obs. impos. Within doors from 7'^ to 9''. 

 Ov't. Obs. impos. to 9'', and doubtless all night. 

 Obs. impos. to 9'\ and doubtless all night. 

 Moon. No A.B. seen to %^. 

 Moon. No A.B. seen to 9|''.* 

 Moon. No A.B. seen to lO''. 

 obs. impos. to lO*", and d's all night. Did not myself observe. 

 Moon. No A.B. seen to 9^ 



Moon. No A.B. seen to 9^'\ [imperfect. 



Som't hazy and cl'y. Moon. No A.B. seen to 9^'', but obs. nec'y 

 Clear. Moon after 9^^ 25°^.* " (383) 



Mostly clear, though hazy about horizon. No A.B. to 10^. 

 Cloudless, but hazy towards horizon. No A.B. to 10^. 

 Ov't and rainy. Obs. impos. to 10^'\ and doubtless all night. 

 Ov't. Obs. impos. to lO-^*^, and probably all night. 

 Ov't and snowinir. Obs. impos. to lO*", and doubtless all night. 



Mostly clear to about 10'' 



Ov't. 

 Ov't. 

 Ov't. 



Ov't. 

 Clear 

 Clear 

 Clear 

 Ov't; 

 Clear 

 Clear 



mipos. 

 Partly clouded to about 9'' ; after that clear.* 

 Clear. A.B., slight to 9*^.* 



Clear after ^ ; previously more or less cloudy.* 

 Clear. No A.B. to 9i\ 

 Clear. No A.B. to 9i\ 



Hazy, and after 9"^ nearly ov't. No A.B. to 9|-''. 

 Clear, chiefly. No A.B. to 10*". Within doors most of evening, 

 Ov't. Snow squalls. Obs. impos. to 9^^*^, and d's much later. 

 Clear. No A.B. to 9^ 

 Clear. No A.B. to lO'^. 

 Clear. Moon. No A.B. seen to 9^^^. 

 Clear. Moon. No A.B. seen to 10'^ 



384) 

 385) 



( 



March 10th. — Not seen to about lOh, when there was a general light along the N., about 

 40° amplitude, and 5° altitude. I saw no streamers, but did not watch many minutes. 



March 11th. — No, A.B. to lOh, yet about lOh somewhat suspected. 



March 2.5th. — Brilliant display of A.B. at New York at 41i a.m. of 25th, according to N. Y. 

 Spectator of 28th inst. 



March 31st. — A.B. not very conspicuous. Amplitude 40° or 50°, altitude 5° to 8°. I saw no 

 streamers, while looking ten minutes about 9h. 



April 6th.— A.B. beginning at dusk. Amplitude of light 100° to 110°, altitude 20° to 30°, 

 much diffuse light, somewhat reddened. I saw not many streamers. The display was how- 

 ever considerable. 



April 7th. — A general light 30° amplitude, more or less. I saw no streamers. Altitude 5° 

 or 7°. 



April 8th. — No A.B. to lOh, or possibly a very faint light about lOh. 



