125 



1903. 



7h. 40m. p.m. a winding streamer, or curtain, appeared in the "gap" and extended to about 

 45 in altitude. This was the most brilliant part of the display and was about equal to a 

 star of the 2nd magnitude. At 7h. 50m. p.m. the display had almost dispersed, but remained 

 faint and very diffused, like a kind of light luminous mist for some time after. Colour, straw, 

 green, and faint tint of pink in brightest and lowest parts. Breadth of streamers about 

 2 to 3, light diffused, sharper edge near earth, and, although flashing out and then fading away 

 continually, appeared to have but little lateral or vertical movement. The display was specially 

 notable for its extent, viz., from N. to S., and complexity of its forms, but at no time very 

 brilliant. Average altitude 15 to 20. Dry bulb = +1-0 F. and wet = zero. Rising rapidly. 

 At 6h. p.m. temperature was - 25 F. Wind light E. airs. 1). Exposed two spectrum plates 

 to light, but without result. 



9h. 45m. p.m. Well-formed arc, extending from N.N.W. to W. 5 N. magnetic, altitude of 

 apex 11, faint, breadth 3. 



August 27. Midnight. Two incomplete arcs of moderate intensity, extending S.E. to S.S.W. true; 

 edges ill-defined, but no outlying luminous patches at all. The upper arc about 20 in altitude, 

 the lower about 12. One above the other. Weather, b. Calm. Temperature, - 18" F. 



August 28. 2h. a.m. Extensive but rather faint and disconnected aurora extending from N.N.E. to S.S.E. 

 true. Rapidly changing. Brightest at the commencement of an incomplete curtain rising from 

 the N.E. to 70 altitude, b. Calm. Temperature, - 24 7 F. 



4h. a.m. Extensive, though barely visible, aurora from N.N.E. to S. true, reaching 40 in 

 altitude, b. E. airs. - 20 6 F. 



Midnight. Slight auroral streamer in E. - 20 F. 



August 29. 2h. p.m. Pale auroral curtain in N., and broken arc over Crater and Observation Hills. 



September 14. A rather fine display manifested itself soon after lOh. p.m., commencing in a large arc of 

 faint rays, extending from E. to W., apex 45. 



At lOh. 20m. p.m. the arc had risen to 75 (apex) and extended from directly over Mount 

 Discovery (E.N.E. magnetic) to W. 5 N. magnetic. Width of arc 2, broadest in N. true; 

 light rather faint and diffused. 



At 1 Oh. 30m. to lOh. 35m. p.m. aurora was rather fine, extensive, and fairly brilliant, extending 

 from Mount Discovery, across and through zenith, to nearly due N. 



The aurora was most beautifully draped along its whole extent, and would flash out 

 brilliantly for a few seconds. Breadth of display 5, N. edge sharply defined. 



At lOh. 40m. p.m. display had almost faded away. 



September 15. lOh. 35m. p.m. isolated faint ray over Crater Hill, altitude 20. 



At lOh. 55m. p.m. display was almost exactly similar to that last night. A huge streamer, 

 about 4 C in width, and draperies extended from about 15 above Mount Discovery, up and 

 through zenith, towards N. true. 



Soon after lOh. 58m. p.m. the display formed a loop around zenith. Still draped and faint, 

 but very sharply defined aurora, like rays to the left. The dark spaces between each ray were 

 about equal to the breadth of the ray. Light diffused = star of 3rd magnitude. 



A\ hole display very evanescent, and had almost entirely disappeared at llh. p.m. Tempera- 

 ture, - 34 F. Wind N.E., 3-4. be. Ci.-s. 2. 



[The aurora displays seem to increase in mean altitude from month to month. They are 

 now much more confined to the zenith and are generally more or less draped. Notes should be 

 carefully examined for any indication of such monthly period in altitude. L. C. B.] 



