Herrick^s Auroral Register. 



33 



1840 



April 1 



2 



3 



4 



6 



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 



1 



2 



3 



4 



6 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



May 



Clearincr in evening; clear at 9'' : faint auroral light visible. (133) 



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



Mostly clear. No A.B. to 10\ 



Clear. Slight auroral appearance in N. to lO^'' : moon interf. (134) 



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



Clear. Moon. No A.B. to 9''. 



Clear. Moon. No A.B. to 11''. 



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



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



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



Ov't. Ohs. impos. to 11'', and doubtless all night. 



Ov't and rainy. Obs. impos. to 10'' and later. 



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



Ov't. Obs. impos. to 10''. 



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



Mostly clear. Moon. No A.B. to lO". 



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



Ov't. Obs. impos. to 10". 



CPr : very sPt A.B. at 9", and aft. to 94'', when I ceased obs. (135) 



Clear. Slight A.B. at 10" and a little before : no streamers. (136) 



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



Ov't and rainy. Obs. impos. to 10", and doubtless later. 



Partly obsc. by clouds. No A.B. to 10" apparently, and p. none. 



Mostly clear. A.B. beginning after twilight.* (137) 



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



Ov't. Obs. impos. to 10". 



Clear. No A.B. to 9". 



Ov't, rainy at 9" and after. Obs. impos. to 10", and d's all night. 



Ov't and rainy. Obs. imi>os. to 10", and probably all night. 



Clear. No AB. to 10". 



Clear.* (138) 



Clear. No A.B. to 10". 



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



Ov't. Obs. impos. to 10", and doubtless later. 



Ov't and rainy. Obs. impos. to 10", and later. 



Cloudy in N. : moon interferes: obs. n'y impos. to 10" : none seen. 



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



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



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



Ov't. Obs. impos. to 10". 



Mostly clear. Moon. No A.B. to 94". 



Partly cloudy. Moon. Obs. uncertain. 



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



Clear, mostly. Moon. No A.B. to 9|^". 



Ov't. Obs. impos. to 10". Clear (I am told) between 10" and 11^ 



Clear. Moon. No A.B. to 94". 



Clear. No A.B. to 9". Moon then rose. None seen after, to 94'*. 



Clear, but slightly hazy. No A.B. to 94". 



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



Ov't. Obs. impos. to 10", and doubtless all night. Rain in night. 



No A.B. seen to 9;^". 



[no A.B. seen. 



April 21th. — Much diffuse light, and now and then streamers, some 20<* high. Long cloud in 

 N. obscures the low arch. [A.B. seen in Ireland same night.] 



May 1st. — Apparently a faint auroral light in N. at different times up to lOh 30m. Some slight 

 uncertainty us to its auroral nature. Probably the A.B. 



