82 Prof. E. Loomis on the Aurora of 1859. 
Hour, | Unifilar. | Bifilar. || Hour. | Unifilar | Bifilar. {| Hour. | Unifilar. | Bifilar. 
H : | \| 
August 28th, August 29th. g September Ist. 
h 
‘ , ‘ 59-5 
3 re) 416-5 | off scale |} 22 4132 I 
4 7 phe : 2 402°5 200 23 519°3 | off scale 
S34. S928 sma'o : on ig he September 2nd. ~ 
10 | 402°3 171°4 5 420°0 48:0 5 
14 | 408-0 161°5 5 pin + o gre gr 3 
. ; 04:0 116-0 2 . 
rs rome: = Be 422°0 106°5 $ 6h aaa 
i 8 417°5 125°0 : 
23 | 412°5 | off scale Ss 3 oe nk pe ere: “a 
I 3970 166:6 
33 404:0 107°5 
5. Observations at Nertchinsk, Russia, (lat. 51° 18’, long. 119° 20! 
.), communicated by Prof. A. T. Kuprrer. 
The value of one division of the unifilar scale is 33’"8. One 
division of the bitilar scale =0-0001 of the total intensity. 
ROR NN Pio ha HENNE 
Hour. | Unifilar. | Bifilar. | Hour.| Unifilar. | Bifilar, | Hour. |. Unifilar. Bifilar, 
A h 
September 2nd, 5 | 2948 2056 II 4 
h ©] 6 | 3a51 224°1 12 | 333-0 246°0 
° 3470 285-1 7 339°5 256-5 13 345-4 243'0 
I 383-0 235 4 8 3350 2504 17 270 269°0 
2 | 635-4 370°1 > | ada 288-5 i 352-0 2790 
3 355°5 3ar5 10 3119 243-5 “| 2 343-5 243-0 
2140 181‘0 
6. Observations at Athens, Greece (lat. 87° 58’), by J. F. L. ScHMIDT, 
Director of the Observatory. (Communicated through Rev. Mr. 
ing, Am. Missionary at Athens.) 
The aurora was not seen at Athens Aug. 28th and 29th. Both 
evenings were very clear and still, especially Aug. 28th. Aug. 
29th from 7 to 8" p. M. some clouds were seen in the west over 
the Morea. Aug. 80-31 was likewise clear, with a very few 
small clouds. Aug. 81st, in the evening, lightning in the . .W. 
pt. Ist, evening, partly clear, partly cloudy, with lightning 12 
the west. 
Sept. 2d, 7415" 4. w., beginning of a storm from the west 
rain and thunder; at 8b 30m 4, 4 i 
Then became clear with sunshine. The evening was clear, and 
in the north there appeared a dark bank of ordinary cloud (not 
the dark segment of the aurora), above which, from 7 30" Pp. M. 
to 8 P. M., was 
1 
cloud bank, which extended 60° in azimuth, was elevated some 
what above the horizon, so that stars were seen beneath it, The : 
centre of the auroral light was not in the north, but N.N.W. 
n the west it was bounded by Cor Caroli, and on the east by 
a fine aurora of a carmine red color. The — 
