JTerrick'*s Auroral Begister. 



3^ 



1840 



July 7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



Aug. 1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



Ov't and rainy. Obs. impos. to lO*", and doubtless all nioht. 



Ov't and rainv. Obs. ijupoj^. to 11^'\ and doubtless all night. 



Mostly clear after 9''. iMoon interferes. No A.IJ. to 10''. 



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



Hazy. Moon. Obs, embarrassed. No A.B. seen to 10'' 20". 



Thick haze ; few stars visible. Obs. irni)os. to 10'', and \\ all night.* 



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



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



Clear. jNIoon. No AB. to 10^". 



Clear. A very faint auroral bank in N. susp. from 9'' to 1 0''.* (141) 



^Mostly ov't after 8" 50'" : obs. impos. to 10'', and prob. all night. 



Ov't. Obs. imi)OS. to 10^:". 



Clear. No AB. to 10t^ 

 Clear. No AB. to \q\\ 

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

 Clear, but somewhat hazy 

 Ob.* 



Faint zod. lioflit in N. and N.N.W. 



to 10^\ 



and doubtless all nisjht. 



No AB, 



Ov't and rainy. Obs. impos. to 10|^'', 



Clear. No A.B. to 10^'\ or pos. a very faint illumination ; doubtful. 



Clear : a faint auroral light between 10'' and 11'', and p. later.* (142) 



Clear. No AB. to 10''. 



Clear. No A.B. to lO*" 25'". 



Mostly ov't. Obs. impos. to 10|^ 



Clear, AB. from 8^" onward.*" (143) 



Hazy about hor. : no A.B. to 10^'' : a fiiint A.B. w'd not be visible. 



P'y cl'r for 15"^ at 9'' : no A.B. then : ov't aft. and obs. impos. to 10'\ 



Ov't. Obs. impos. to 10^'', and prob. all night. [and p. all night. 



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



Ov't and rainy to l"* (4th) at least, and p. all night: obs. impos, 



Ov't wholly to 10". Clearing otf about lOf". No A.B. then. 



Clear. Moon interferes. No AB, to 10''. 



Mostly ov't, Obs. impos. to lO*", and probably to midnight. 



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



Cl'y and r'y early in ev'g : after 9^'' m'y cl'r : no A.B. to lO*" : moon. 



Beautifully clear : no A.B. d'g whole n't : moon interf. to 3" of lOtlL 



Clear. No AB, to 11". Moon. 



Ov't. Thunder shower about 11''. Obs. impos. to that time. 



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



Ov't and rainy to midnight, and ov't doubtless dll night. 



Very clear. Moon interferes. No A.B. seen to 11". 



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



Clear : no AB. to 8^'', when moon rose : none seen after that to 1 0^". 



Clear, but hazy near horizon. No A.B. to 10|^". 



Clear. No AB. to 10^". 



Mostly clear. A considerable A.B. from 8" onAvard,* {^'^^) 



Mostly clear; hazy about horizon. No A.B. seen to 10|^". 



Clear. No AB. to 10". Zod. light faintly vimble in N.W. at 9". 



Clear. No AB. to 10". 



July 12th. — Some appearance like an auroral (?) belt seen by Prof. Olmsted between OhandlOh, 

 extending from N. to S. and overhesid; drifting; eastward, soon vanished. Probably not auroral. 



July 16th. — Moon interferes. No streamers seen to lOh. 



July 2.5th. — No streamers seen. [Streamers seen before 9I» by Mr. T. Linsley.] 



July 29ih. — Low arch, mneh diffuse nebulous light, indefinite streaks as high as zenith; few 

 streamers: watched until lOh 30m; light feeble; no corona formed. 



Aug. 19th. — Brightest from Sli to 9li. Arches 15° high, but little streaming. Watched to 

 lOh 45in. 



