34 



1840- 



May 21] 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



June 1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



July 1 



2 



3 



4 



5 



Herrick'^s Auroral Register. 



Ov't and rainy in ev'g. Obs. impos. to lO*", and doubtless all n't. 

 Mostly clear after 9'>. No A.B. to 10", 

 Clear after 9"^, except long low clouds in N.* 

 Clear. No A.B. to 9'' 40'". 



Cl'r : I did not obs,, but from what I can learn, prob. no A.B, to 10". 

 Clear. No A.B. to 10''. 

 Clear. No A.B. to 10". 

 Clear. No A.B, to 10", 



Hazy and somewhat cloudy, A conspicuous A.B.* (1^9) 



" ■ (140) 



Obs. impos. 



Some rain. Obs. impos. 



Clear. A.B., moderate.* 



Mostly clear. No A.B. to 9^^, 



Ov't to 10", and doubtless all night. 



Ov't to 10", and doubtless all night. 



Ov't to 10", and no doubt all night. 



Ov't to 10", and doubtless all ntght. 



Clear. Moon interferes. No A^B. to lOf". 



M'y ov't : obs. n'y or quite impos. to 1 1" : oc'l breaks ; no A.B. seen. 



Ov't, a little rain in ev'g. Obs. impos, to 10", and prob, all night. 



Mostly ov't. Obs. impos. to 10". 



Clear. No A.B. to 10". 



Mostly ov't. Obs. impos. to 10". 



Partly cl'r: cl'y in N. : moon : obs. nearly or quite impos. to 10". 



Half clear. Moon. At 10" nearly clear in N. : no A.B, seen to 10". 



Clear, Moon, No" A.B, to 10^", [A,B, seen. 



M'y ov't, Cl'r in N, a little after 9" ; at 9|" wh'y ov't : moon : no 



Mostly clear. Moon interferes.* 



Verv clear. No A.B. to 10;^". Moon rose about 9|". 



CleaV No A.B. to 10", 



Ov't, rain in night. Obs. impos. till after midnight. 



Much ov't, and at 10" almost entirely.* 



Clear. No A.B. to lOi". 



Clear. No A.B. to 11". Lightning in N. from 9" to 10" oc'y. 



Mostly cloudy. Obs. nearly impos. to 10^". None seen. 



Clear. No A.B. to 10^". 



Mostly clear, but slightly hazy. No A.B. to 10:^". [aft. ov't. 



Ov't below 20° ; mostly cl'r above : no A.B. seen to 9|^" ; then and 



Mostly clear in N, No A.B, to 10", 



M'y ov't and wh'y so after 9^" : no A.B. seen at cl'r intervals in N. 



Hazy. Obs, obstructed. No A.B. seen to 10^". 



Ov't. Obs. impos, to 10|^", and doubtless all night. 



At 9" ov't, and onward to 10:^", and later, Obs, impos. 



Fleecy cl'ds : no A,B. seen to 1 1", p. none : at 1 1^" wh'y ov't in N. 



Ov't, Obs. impos. to 10", and probably all night. 



Ov't, Obs. impos. to 1 U". 



Clear. Moon interferes. No A.B. to 10". 



Sky much cl'ded by cirri : moon : obs. very imperf : none seen to 10". 



Wh'y ov't. Obs. impos. to 10", and d's all night, liain in night. 



May 23d. — Watched to llh; possibly a Mnt auroral liffht, but uncertain. 



May 29th. — A narrow belt overhead between 9h and lOh ; and after lOh auroral waves as high 

 as zenith. 



May 30th. — About 91i 20m, several streamers 20° hiph. 



June 15th. — I have some suspicion that there is at 9h 30m an unusual light, but am far from 

 being certain. 



June 19th. — Observation nearly impossible to lOh, probably all night. Some light among 

 clouds in N. ; possibly an A.B., but very doubtful. 



