42 



1841. 



Apr. 27 



28 



29 



30 



May 1 



2 



3 



4 



5 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



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 



IIerrlck''s Auroral Register. 



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



Clear: moon : no A.B. seen to IOt^', but I was within most of eA''g. 



Ov't and rainino;. Obs. irapos. to 10*^, and doubtless all night. 



Mostly ov't. Obs. impos. to 10'\ and probably all night. 



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



Mostly clear. Moon. No A.B. to 10"^. 



Clear. Moon. No A.B. to %'^. 



Mostly clear. Moon. No A.B. seen to g''. 



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



Mostly clear. ' Moon. No A.B. to 9^. 



Ov't and rainy in part. Obs. impos. to 9*^, and doubtless all night. 



Clear. A faint A.B. lying low hi N, : seen to 10''. (184) 



Almost wholly ov't. Obs. impos. to 9t|-'\ and doubtless all night. 



Ov't and misty. 01)s. impos. to 9:^'\ and doubtless all night. 



Beautifully clear. No A.B. to 9^''. 



Almost entirely ov't. Obs. nearly impos. to 10^'\ None seen. 



Clear and line. No A.B. to 10". ' 



Mostly ov't. Obs. nearly impos. to 94^". None seen. 



Mostly ov't. Obs. impos. to 9^'\ 



Clear, but somewhat hazy about horizon. No A.B. to 9|-''. 



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



Clear. No A.B. to 9.p. 



Ov't to 9'^ ; clear between 9'^ and 10''. No A.B. then. 



Clear. No A.B. to 9i^ 



Cloudless, but very hazy towards horizon. No A.B. seen to 9^''. 



Ov't : obs. im])os. to 9i'', and ]x all n't : thunder shower about I''. 



Clear. Moon begins to interfere. No A.B. seen to 10''. 



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



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



Ov't. Obs. impos. to 10'', and doubtless most of the night. 



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



Clear to 10'', when fleecy clouds came over : moon : no A.B. to 10'', 



Rain most of ev'g ; p'y d'r aft. 9'' : obs, impos. to 10'', p, most of n't. 



Beautifully clear. Moon interferes. No A.B. seen to 10^''. 



Beautifully clear. • Moon interferes. No A.B. seen to 10^''. 



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



Clear after 9''. No A.B. to 10^'', Moon interferes. 



Mostly clear. Moon. No A.B. seen to \^^. 



Mostly clear. Moon. No A.B. to 10''. 



Hazy, with some cirri : moon : no A.B, seen to 10^'', but obs. unc. 



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



Mostly ov't; a little rain about 8''. Obs. impos. to 10''. 



Mostly clear. No A.B. to 10''. 



Mostly clear. No A.B. to 10^''. : 



Clear; few clouds in N.W. No A.B. to 10". 



Mostly ov't. Obs, impos, to 10'', and doubtless much later. 



Much ov't, especially in N. Obs. impos. to 10''. 



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



Ov't and raining part of night: obs. impos. to 104^'', and p. all n't. 



Beautifully clean* " (185) 



Beautifully clear. No A.B. to 11''. 



June 15th.— About lOh observing carefully for zodiacal light, which is, I think, still visible 

 chiefly between N. and W. At this period I feel quite sure that there is a faint auroral bank, 

 low in the northern horizon. I saw no streamers. 



