120 

 1903. 

 July 15. 4h. a.m. Faint aurora in E., altitude 15. 



Auroral streamers were seen low down on horizon from E. by S. to S.E., at about 

 4h. 5m. p.m., and lasted some time. Fairly bright. None of the streamers attained a greater 

 height than 4. 



July 16. 4h. p.m. Faint arc from E. by S. to N.W. by W., altitude 20. 



Midnight. Extensive, though very faint, auroral glow N. to S.E., reaching to 40 in 

 altitude, fading away completely and reappearing again at intervals of about 30 seconds. 

 Temperature, - 32 F. Weather b. Calm. 



July 18. 4h. p.m. Diffused aurora light in S.E. and streamers to altitude 8. 



July 19. 4h. a.m. Faint arc N. to E., altitude 15 and 7. Wind N.E., 1-2. No clouds. 



6h. a.m. Arcs, N. to S.E., seen at intervals of 20 to 40 seconds. Temperature, + 3 F. 

 b. Calm. 



An especially brilliant aurora suddenly appeared a few minutes after 4h. p.m., in the 

 shape of a curtain, or segment of an arc, extending from W. 20 N. to N.E. magnetic. There 

 was more movement, both vertical and horizontal, than has yet been observed. The vertical 

 movement of the whole display en masse was fairly rapid from S. (or N. magnetic) towards the 

 zenith, and the horizontal motion of the huge shafts of light at one time too rapid for the eye to 

 follow. The intensity of the light rapidly changed, frequently showing a green hue, and 

 occasionally a faint pink. Directed spectroscope towards the light, but it was too evanescent 

 and shifting to see anything. Altitude at first was about 10 at the extremities E. and W., 

 and 20 in centre, but this gradually rose to 50 and 60 in the centre. The brightest display 

 was at about 4h. 10m. to 4h. 15m. p.m. ; had almost entirely disappeared at 4h. 25m., and at 

 4h. 35m. there were very faint, slightly luminous patches here and there. During this special 

 display a bright auroral glow showed up above the hills almost at right angles to the curtain. 

 The display originated quite suddenly in the direction of Mount Discovery (E.N.E. magnetic) 

 and flashed across the sky towards Observation Hill in a few seconds. Temperature of air, 

 -3 -2 F. Wind E.N.E., 2-4. Clouds nil. The temperature during the last two days has 

 been abnormally high, the maximum yesterday being +12 F. This seems to indicate a warm 

 current from some direction, perhaps from the Ross Sea. Brisk N. and N.W. winds prevailed 

 yesterday. A deep red glow from the sun below the horizon appeared this morning and 

 remained in the northern sky until about 2h. 30m. p.m. This glow extended to quite 20 in 

 altitude. This characteristic glow appears for two or three days some weeks before the return 

 of the sun and some weeks after it leaves. 



The display, which from the ship showed just above the hills, was seen by an observer in the 

 Sound and took the form of two segments of arcs, extending from N.E. to S.S.W., with streamers 

 radiating from the upper edges towards the zenith. 



July 20. 8h. p.m. Faint auroral glow behind hills to N.E. 



Midt. Band of auroral light crossing zenith E. and W., 10 to 15 in length. Faint 

 luminosity low in sky, S. to S.S.E. Temperature, - 17 F. b. Wind E. by N., 1. 



July 21. 4h. p.m. Auroral display in E. 



July 22. 2h. a.m. Extensive, complicated, and rapidly changing display from S. by W. to S.E. true, rising 

 to zenith, and occasionally beyond. At first appearing as a number of parallel segments of arcs, 

 from horizon to 70 in altitude, though as many as seven could be distinguished, some were 

 irregular and dimly outlined ; numbers 2 and 3 from zenith were especially bright, uniform, and 

 exact in parallelism. Later this phase changed to one in which the same portion of the sky was 

 covered with numerous irregular patches of light. At 2h. 15m. a.m. tha arcs above and below 



