32 IlerricFs Auroral Register. 



1840. 



Feb. 13 Mostly ov't: obs. n'y impos, to 10'' : none seen: moon also interf. 



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



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



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



17 Mostly ov't. Moon. Obs. impos. to 10'', and probably all night. 



18 Ov't and raining. Obs. impos. to 10'', and doubtless much later. 



19 Thick fog. Obs. impos. to 10'', and doubtless all night. 



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



21 Clear. Slight auroral appearances low in north.* (^28) 



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



23 Ov't. Obs. impos. to lO*", and probably all night. 



24 Much obsc. by clouds. Obs. nearly impos. to 10''. None seen. 



25 Mostly clear. No A.B. to 10''. Obs. som't embarrassed by cl'ds. 



26 Ov't. Obs. nearly or quite impos. to 10^'', and prob. all night. 



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



28 Ov't. Obs. impos. to 10''. [Clear at 11'' ; no A.B. : fide E. P. M.] 



29 Half clear. No A.B. to 10''. Obs. embarrassed by clouds a little. 

 Mar. 1 Ov't. Obs. impos. to 10'', and doubtless all night. 



2 M'y ov't to 9", when cl'ss but hazy: no A.B. to 10'', but obs. unc. 



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



4 Cloudless, but hazy. No A.B. to 10". 



5 Clear. Fine A.B.* (129) 



6 Clear. No A.B. to 10'', or pos. a veiy faint light in N. about lO*", 



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



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



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



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



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



12 Clear. Moon. No A.B. to 8". 



13 Mostly clear; low clouds in N. Moon. No A.B. to 9''. 



14 Mostly ov't. Obs. impos. to 9", and probably all night. 



15 Ov't. Obs. impos. to 9". 



16 Mostly clear to 9|", then clouding over. No A.B. seen or susp. 



17 Ov't to 10", then clear. Moon. "No A.B. to 11". 



18 Ov't to 10", and doiibtless later. Obs. imj>os. 



19 Ov't, rainy. Obs. impos to 10". 



20 Ov't. Obs. impos. to 11". 



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



22 Mostly clear, but some clouds in N. No A.B. to 9", and p. none. 



23 Ov't to 9", and doubtless all night. 



24 Sleet, snow, and rain all ev'g. Obs. impos. to 10", and d's later. 



25 Clear.* (130) 



26 Clear.* (131) 



27 Partly clear to 8^", then ov't. No A.B. Cloudy during night d's, 



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



29 Cloudless but foggy. Obs. below 25° impos. None susp. to 9^''. 



30 Ov't and rainy. Obs. impos. to 11". 



31 Clear.* (132) 



Feb. 21st. — No streamers vseen to lOh. 



March 5th. — Not seen or vi-.ible until 9h 30m : gradually increased until the low arch was 

 very luminous. Streamers perhaps 20= high, and some red light. 



March 25th.— Most of evening no auroral light, but from 9h to lOh there was a slight A.B. ; 

 dawn merely. 



March 2Gth.— No A.B. to 9h, but about lOh there seemed to be a very faint auroral light m N. 



March 31st.— Not watched before 9h, but some very faint traces of A.B. suspected up to lOh. 

 [A splendid display at 2h 30m a. M., April 1st; reported by Mr. WillardLyon: crimson and 

 white streamers reached almost to zenith.] 



