8ft SerricWs Atiroral Register: 



1840 



Aug. 23 Ov't. Obs. impos. to 10^''. 



24 Mostly clear to 9^^, then clouding.* (145) 



25 Clear: no A.B. to 9^'^ : zod. lightinN.W. and W. by S. ; very faint. 



26 Mostly ov't. Obs. impos. tolo^. 



27 Much clouded. Obs. difficult and doubtful. Prob. none to lO*". 



28 Much clouded, but a considerable A.B. visible to 11^,* (146) 

 2f Mostly clear. No A.B. to ll"^.* (14V) 



30 Clear mostly. No A.B. to 10^. 



31 Very clear. No A.B. to 10*^. 



Sept. 1 Hazy to 9"^, and cloudy after. No A.B. seen, and p, none to 10''. 



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



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



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



5 Ov't. Obs. impos. to 9|'', and probably most of the night. 



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



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



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



9 Ov't. Raining at 9". Obs. impos. to 10'', and doubtless later. 



10 Ov't and rainy. Obs. impos. to 9^**, and doubtless later, 



11 Ov't. Obs. impos. to 10'', and later no doubt. 



12 Very clear. Moon. No A.B. to 9^''. 



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



14 Partly cl'r to 9'', aft. to 10" ov't, rain : no A.B. seen, but moon interf. 



15 Clear. Moon rose at 8". No A.B, to 8'', nor after to 10", 



16 Mostly clear. No A.B. to 10".* 



17 Partly clear. No A.B. to 9". 



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



19 Clear. A slight A.B,* (148) 



20 Cloudless but hazy. No A.B. to 9|". 



21 M'ycl'r: a conspicuous A.B. : streamers 40° high at times.* (149) 



22 Clear. A.B. suspected.* (150) 



23 Cl'r: noA.B. tolO": do. at N. Y. (Mr. A, B. H. at N. H. : I went to 



24 Clear: no A.B. to 10"; same at N. Y. Mr. A. B. H. at N. H. [N.Y.) 



25 Clear : no A.B. to 10" ; same at N. Y, Mr, A. B. H. at N. H.* 



26 Clear, No A,B, to 9". 



27 Partly clear. No A.B. to 9", 



28 Very hazy : a moderate A.B, w'd not be vis. No A.B. seen to lO**. 



29 Very hazy : a moderate A.B, w'd not be vis. No A.B. seen to 9^**. 



30 Ov't. Obs, impos, to 10", and d's all night; rain during night, 

 Oct. 1 Entirely ov't; drizzling: obs. impos. to 10", and d's all night. 



2 Entirely ov't, and some drizzle : obs. impos. to 10", and d's all night. 



3 Al't wh'y ov't to 9^" : moon : obs. impos. to 9|^", when cl'ring off. 



4 Very clear, but moon interferes. No A.B. seen to 9^",* 



Aug. 24th. — A.B. suspected. Singulnr long streaks of light in S.E., N.W., and elsewhere. 

 [A.B. seen at Catti?kill, N. Y., by Prof. Olmsted, after lOh. Streamers at lU'.] 



Aug. 2Sth. — An arch 40° high in N., between lOh and llh : few streamers. 



Aug. 29th.— At 12h I think there was a slight A.B. Not to be seen at Ih or 2h a. m. of 30th, 



Sept. 16th.— [Mr. Gilbert Deau, Jr., Yale College, reports that he saw about Ih a. m. of 16th, 

 in Dutchess Co., N. Y., a grand auroral displaj-; a corona was formed.] 



Sept. 19th.— Faint light low in N. for 15° each side of N. ; not visible until 9h ; seen to lOh ; 

 no streamers : not watched longer, 



Sept. 21st. — Began before end of twilight ; a bright band 10° or 12° high, with much diffuse 

 light 30° high above it, all filling about 120° of horizon : dark segment beneath. Watched at 

 intervals to lOh ; fine display at Oh 40ni a. m. of 22d. 



Sept. 22d. — Some singular arcuate streaks in N. A.B. no doubt. 



Sept. 2.5th. — Mr. C. S. Lyman saw at Manchester, Conn., an A.B. at lib 4.5m, but no streamers, 



Oct. 4th. — At 21i A. M. of 5th, thought there was a faint illumination in N., but it may be 

 doubtful. 



