432 EXPEDITION TO POINT BAIillOW, ALASKA. 



drifted i-iist\\ ai el, much obscured by clouds. At 2 a. m. a zone about (50 broad, crossiug the zenith 

 from SE. to N W.. was visible through the thin clouds (brightness apparently 1 to 2). At 2.15 to 

 2.20 (lie sky was clearer, though the starting points were still obscured. The. shifting bands were 

 nil west of the zenith, the crown of the lowest passing through n Tauri. A hazy band was propa- 

 gating rather rapidly from the BE., and the whole faded quickly and brightened up again. At 

 2.45 these bands in the W. wore still pale, but somewhat convoluted. Suddenly the whole shot up 

 to the zenith with lightning rapidity, burning very bright (3 to 4), and developing exceedingly 

 rapid motion, both waving and whirling, with rapid changes of color and brightness. It passed 

 the zenith in about two minutes, forming a semi-corona, first on the west side and then on the east. 

 The motion was mostly from the NW., and the colors, though delicate, were exceedingly bright. 

 They were apple-green, pale yellow, and rose-pink, in the usual order, the latter especially beau- 

 tiful. In less than five minutes the motion subsided and the aurora faded, leaving the sky nearly 

 co\ered with hazy, spiral, and sinuous bands (brightness mostly 1, some brightness 2), appearing 

 to start from the SE. and NW., forming a sort of vortex round the zenith, circling and waving 

 slowly, as it was seen at the 3 a. in. observation. At 3.15 to 3.20 there was in addition a bright 

 loop in the NW., seen through the clouds, which gradually shifted and faded, breaking into lumi- 

 nous patches. At 4 a. in. all was gone except a bright glow in the NE. showing through the clouds, 

 which at 4.15 to 4.20 could be seen to be an arched band. A shifting broad zone (brightness to 1) 

 covered most of the sky, and began to develop spirals in the N. At 5 to 5.20 a slowly- waving band 

 (brightness 1 to 2) ran from Triangulnm through Andromeda, Cassiopeia, Cepheus, Ursa .Minor, 

 Draco, and Bootes. Traces only were seen at the next observation. At 7 to 7.20 a belt of quiet 

 bands (brightness to 1) ran from Taurus through Auriga, Gemini, Lynx, Ursa Major, Leo Minor, 

 Canes Venatici, and Coma Berenices to Virgo. Only traces were seen at 8. At 0.17 there was a 

 broad arch from the NW. to SE., with its crown at an altitude of about 18, and a broad, irregular, 

 striated arch from the SE. to NNW. through Lyra, Draco, I'rsa Major, Lynx, and Gemini (all 

 brightness to 1). This had faded to traces at 10,17. This aurora was probably a continuation 

 of last night's, as it appeared highly developed at dark, and the, magnetic disturbance still contin- 

 ued, though its violence was greatly abated. 



March 4, 1883, 12.15 <t. m. 1o 10.17 a. m. Before the twilight was faded there was a faint 

 arch in the NE., whose extremities bore E.SE. and NW., with its crown at an altitude of about 20. 

 At 1 a, m. there was a regular arched baud (brightness 1) in the NE. from ESE. in Leo through 

 Coma Berenices, Bootes, Corona Borealis, Hercules, Lyra, and Cygnus, with streamers in Cygnus, 

 which had developed at 1.15 into the upper band of a zone of three bauds, passing through // 

 ['}<-. Majoris. At 2 a. in. there was an extensive /one (brightness 1 to 2) starting ESE. in Leo 

 and NNW. in I'egasus, with its eastern bands in the position of the aurora last noted, and the 

 main body of the zone crossing the zenith, going only 3 or 4 west of Polaris. Ilere it began to 

 wave and circle, while the band through >/ Ursa- Majoris was now made up of short streamers, 

 vibrating rapidly from E. to W., and slightly tinged with the usual colors. At 2.15 the main 

 position still circling had reached a Auriga' in the W., and the belt of streamers had become a 

 broad sinuous band in rapid serpentine motion from the SE., again breaking into longer streamers, 

 vibrating from NW. to SE. The western portion laded out in about five minutes, while the eastern 

 subsided to quiet bands (brightness 1). At 3 a. m. nearly the whole sky was covered with hax.y 

 -one bands (brightness to 1) from a Lyrse to Orion's belt, thinnest near the zenith and most nu- 

 merous in the W. At 3.15 to 3.20 these were, condensed to a broad shifting baud (brightness 2j from 

 I. eo (ft) in the ESE. to Pegasus in theNW. through y and n Leonis, Leo Minor, Lynx, Auriga. Per- 

 seus, and Andromeda. At 4 a.m. there were two well-defined arched bands (brightness to 1) in the 

 N !'., t lie upper broad and the lower narrow, starting from Triangulum to Serpens through Pegasus. 

 Cygnus (f. and ft), and Hercules, with much diffused luminosity, reaching up to the zenith. At 

 ).!"> to 4.20 (>e bands were twisted and broken, with a few pale streamers in the ESE., soon disap- 

 pearing, and evanescent twisted streaks near the zenith. At 5 to 5.20 one band ran from Aries 

 through Triangulmn, Andromeda, Cassiopeia, Cygnus, Lyra, Draco, Hercules, and Serpens, and 

 .mother short band from Taurus through Auriga and Ursa Major (brightness to 1). At C to 

 0.20 there were traces only in the S. At 7 to 7.20 a slowly waving band (brightness \ to 2) ran 

 from Taurus through Orion. Ccmini, Cancer, Leo. and Coma Berenices. At M to S.20 there was a 



