MAGNETIC OBSERVATIONS 



33 



estimated ; 11:03: 30, decreasing, but stopped at this ; 11:03: 32.3, decreasing, but stopped at 

 this; 11:03:42, scale goes off at 3:42.5; 1 1: 09: 20, decreased to 49*. r at 9: 20.3 ; 11:10:10, 

 begins to decrease without oscillating ; 1 1 : 14: 04, faint aurora in magnetic north ; 1 1 : 16: oo, 

 aurora in magnetic south ; n: 17:32, aurora, east to southeast; n: 17:45, oscillation had to 

 be reduced with the pin as scale swung beyond the thread; 11:17:50, aurora, north to 

 southwest; 11:19:32, faint aurora, north to southwest; 11:21:06, aurora magnetic east to 

 west through south ; 11:21:26, aurora has disappeared; 11:21:50, faint auroral light from 

 magnetic south to west; 11:22:06, aurora from west to east through zenith; 11:22:14, 

 aurora from south through west, faint; 11:22:26, reached 75* and returned to this. 

 12:16:00, faint aurora magnetic north to southwest at beginning; 12:16:50, aurora from 

 northeast by east to south ; 12: 16: 56, aurora extends in ill-defined bands from northeast to 

 southwest, a bright band extends through the south, the others between this last and zenith, 

 one through zenith ; 12: 17: 10, aurora, three bright streams northeast to southwest through 

 zenith and through southern sky ; 12: 17: 30.3, aurora extending 45 vertically from horizon 

 northeast ; 12: 18: 24, no aurora ; 12: 18:40, bright aurora northeast to east, 45 above horizon; 

 12: 19:36, auroral band east to south, 10 above horizon ; 12: 19:50, auroral streak north to 

 west, 10 above horizon. 13, omitted on account of blizzard, hut inaccessible. 15:20:16, 

 partly cloudy. 17, faint aurora at beginning, single strip northeast to southwest through 

 zenith ; 17: 12: 20, sky overcast ; 17: 14:32, partly cloudy, faint aurora in west, vertical strips 

 from 15 to zenith; 17: 14:40, faint aurora west to east through zenith; 17:14:50, faint 

 aurora east to west through zenith and very faint patch in north 45 above horizon ; 17: 15: 10, 

 aurora growing stronger in east, patch to north has disappeared; 17: 15:22, scale stopped 

 at 67". 9 and then increased to 68 d .8 ; 17: 15:46, aurora has practically disappeared. 18:07:58, 

 aurora in zenith extends to all points of the horizon, strongest in east and southeast ; 

 18: 08: 18, aurora has grown very dim, especially in the east ; 18: 08: 36, aurora has disappeared; 

 18:09: 36, partly cloudy; 18: 10: 34, overcast ; 18: n; 56, overcast ; 18: n: 14, clear in zenith, 

 very faint aurora from northeast to southwest through zenith; 18: 12:48, aurora has disap- 

 peared; 18: 13:04, faint aurora starts in zenith with increasing streamers extending 30 to 

 southwest ; 18: 13:08, faint aurora, northeast to southwest, stronger in southwest ; 18: 13: 24, 

 aurora increasing in strength, extending from zenith to horizon from north to east and north 

 to southwest, stronger in east ; 18: 13: 30, aurora stronger in north, has disappeared in east ; 

 18: 18: 14, aurora through zenith from northeast to southwest ; 18: 18: 46, aurora has almost 

 disappeared; 18:18:56, faint aurora in broken patches from north to east and half way to 

 zenith ; 18: 19:08, aurora has disappeared ; 18: 19: 58, very faint aurora in north, west and 

 south ; 1 8: 20: 10, aurora has disappeared ; 18: 20: 22, faint aurora in south and southwest ; 

 18:20: 32, aurora in arch from northeast to northwest, vertex of arch 45 above horizon, also 

 streamers from zenith to south and west ; 18: 20: 42, very faint aurora extends in spots from 

 east to west through zenith ; 18:21: oo, horizontal circle accidentally moved ; 18: 21 : 06, aurora 

 has disappeared ; 18: 23: 12, clear sky, no aurora; 18:24:55, telescope reversed on azimuth 

 mark and gave same reading. 19: 16:00, faint aurora at beginning from northeast to south- 

 west through zenith, stronger in southwest; 19:16:30, aurora has disappeared; 19:19:36, 

 aurora reappears from northeast to southwest along horizon. 20: 20: oo, southeast blizzard 

 throughout observations. 22:01:58, strong gale from south with flying snow; 22:04:54, 

 decreased to 27*. o. 23:08:30, increased to 42 d .g ; 23:08:36, decreased to 27*. 7 ; 23:11:22, 

 decreased to 25*. 2; 23: 1 1 : 38, this oscillation in 30 seconds. 25: oo: oo, blizzard, 48 to 60 miles 

 per hour, had to dig out entrance ; 25: n: 16, calm ; 25: 12: 50, wind rising ; 25: 18: 54, aurora 

 northeast to southwest through south at 45 altitude; 25:21:06, cloudy. 26:16:00, east- 

 southeast blizzard. 27:20:00, blizzard continues; 27:19:30, plane of detorsion is 352, 

 this change since last reading probably due to slackening of fiber before 10: oo in an attempt to 

 get intensity observations. 30: 11:38, foggy and snowing. 



