434 EXPEDITION TO POINT BAHKOW, ALASKA. 



zenith, at length forming a complete corona of curtains (brightness 1), elongated towards the 

 horizon, and brighter (brightness 2) in ESE. and NNW., with considerable motion at 4.20. At 5 

 to 5.20 a baud of streamers, in slow motion from W. to E., ran through Taurus, Auriga, (iemini, 

 Cancer, Leo, and Virgo, with short, broad, qniet bands from Virgo through Bootes, Serpens, 

 Corona Borealis, Coma Hcrenie.es, Canes Venatici, Leo Minor, and Visa Major (brightness 2 to 3). 

 At G to 0.20 a baud (brightness 1) ran through Perseus, Cassiopeia, and Cygnus. At 7 to 7.20 

 oulv traces near the xenith were seen. At 8 to 8.20 there were .several parallel bands in the S., 

 15 to 50 above the horizon (brightness to 1). At 9.17 there was an arch in the S. (brightness 

 to 1) from SE. to NW., with an altitude of about 20, with faint curtains in the X and NE. and 

 a few faint streamers centering towards the zenith. At 10.17 traces of the arch still remained, 

 and other traces in the W., N., and near the zenith. There was a magnetic disturbance from 4= 

 a. in. to 1 p. in., reaching its maximum at about 12 m. 



March 8, 1883, 12.15 . m. to 9.17 a. m. The aurora was first noticed at 12.15 (about 7 p. m. 

 local), when the twilight was still bright, as a band crossing from SE. to NW., passing about 20 

 SW. of zenith. In the next three observations there was much haze and hazy clouds, obscuring 

 the stars. At.l a. m. a, broad shifting zone crossed the zenith from WNW. to ESE., showing 

 through the haze (brightness 1 to 2). At 1.15 to 1.20 it was narrower, and passed 15 to 20 S\Y. 

 of the zenith. At 2 a. m. there showed through the hazy cloud in the SW. a regular arch (bright- 

 ness ll), reaching an altitude of about 20. This was gone at 2.15 to 2.20, and a hazy baud crossed 

 about 15 SW. of the zenith. At 3 a. m. there was a broad zone about 120 in width from SE. to 

 N\V. (brightness 1 to 3). It was brightest on the edges, especially in the W., where there was 

 considerable motion and tinges of the usual colors, all obscured by the haze. At 3.15 to 3.20 it 

 was mostly confined to the NW., where it formed bright shifting loops, with their convexity towards 

 the zenith. At 4 a broad waving and shifting zone crossed the zenith (brightness 1 to 2) from a 

 broad, origin, NNW. to NW. by N., to ESE., the starting points in Virgo and Andromeda, Trian- 

 guluni and Aries, the eastern edge passing through Coma Berenices, Canes Venatici, Ursa Major, 

 Ursa Minor, and Cassiopeia, and the western through Leo Minor, Lynx, Auriga, and Perseus, with 

 an arched yellow baud (brightness 2 to 3) to the NE. through Cygnus (a), Lyra (a), Corona Borealis, 

 and Virgo. At 4.15 to 4.20 it was in nearly the same position, but fading and shifting. The east- 

 ern edge of the zone appeared fiinbriated. At 5 to 5.20 a slowly waving baud (brightness 1 to 2) 

 ran through Taurus, Auriga, Ursa Major, Canes Venatici, Coma Berenices, Bootes, Corona Borealis, 

 and Draco. Traces only were observed at G to G.20. At 7 to 7.20 bands and patches (brightness 

 to 1), without motion, covered the southern half of the sky. These had faded to mere traces near 

 the southern horizon at 8 to 8.20. And traces only in the SW. and N. were seen at 9.17. None 

 were seen at the next observation, but the sky then became cloiulyj so that the end cannot be 

 determined with certainty. A magnetic disturbance commenced about 3 a. m., and continued the 

 rest of the night, reaching its greatest violence at about 9 a. in. 



March 9, 1883, 1.15 . m. to G.20 a. m. Very early in the evening, while the twilight was still 

 bright, a patch of aurora appeared in the SE. near the horizon, but soon disappeared, and no defi- 

 nite aurora was seen till 1.15 to 1.20, when indistinct horizontal bands appeared in the NE., begin- 

 ning gradually to develop in the ESE. At 2 a. m. a barely perceptible band crossed the zenith 

 from ESE. to NNW., through Leo, Ursa Major, Catnelopardalis, and Cassiopeia, and was in nearly 

 the same place at 2.15 to 2.20, beginning to shift a little towards the W. At 15 a hazy band (bright- 

 ness 1) ran from the ESE. in Virgo to the NNW. in Andromeda through Leo, Ursa Major (a and 

 ft), Camelopardalis and Cassiopeia, which at 3.15 to 3.20 was paler, and sent a baud through Cancer, 

 Taurus, and Aries. At 4 a. in. there were merely traces in nearly the same position, but at 4.15 to 

 1.20 there was a hazy baud nearly 1 in brightness starting close to Virginis in ESE. through n, 

 Leo (,i and ); Leo Minor, Lynx, Auriga, and Perseus, ending in a series of short, ill-defined streamers 

 in Andromeda NNW. At 5 to 5.20 a quiet arch (brightness 1) ran from Taurus, through Orion, 

 (iemini, Leo, and Bootes. At G to G.20 there was a bright corona (2 to 3), centering in 1 'rsa Major, 

 on the edges vibrating rapidly from W. to E., and in the center whirling rapidly. Traces were 

 Been at the next two observations. The magnets were quiet until about 11-' in., when there was a 

 violent disturbance, lasting only three hours, and reaching its maximum at 1 a. in. 



i H>. iss:;, ]."0 n. m. ^9.17 .m. Evanescent traces were noticed in the N. about 1.30a.m., 



