188 



18th. zenith. That part near the zenith was most vivid, 



and even showed a faintly-red selvage below. The 

 luminescence surged backwards and forwards 

 along the arc, apparently with a stronger 

 southerly movement. For some time the great 

 circle had kept opening out, apparently enlarging 

 its diameter, though obviously engaged in a 



1(5.35 general N.W. travel ; when, however, it had 



reached a point a little to' the N.W. of the zenith 

 this travel ceased. This was the period of its 

 greatest brilliance. Patches of concentric rings 

 were noted within the larger. One of these inner 

 rings, which, however, was somewhat eccentric 

 (to the N.E. of the centre), attained great 

 brilliance, and even showed a strongly coloured 

 selvage. 



17.06 The display has died away. 



17.35 Aurora absent. 



17.45 A blob of auroral nebula near the horizon in the 

 N.E. by N. 



19.45 No aurora seen. 



20.35 Absence of aurora. 



21.55 Auroral streamers on the N. horizon. No aurora 

 was seen later, though the sky remained clear for 

 some time. 

 19th, 16.40 Auroral glow in a faint arc N. to W. about 30° up, 

 bowed to the S. ; tre'nd in a general E. and W. 

 direction. 

 20th, 2.00 An auroral glow over a considerable area in the N. 

 sky. From this were brighter ribs radiating to 

 the S. The stronger of these curtains extended 

 beyond the general glow and passed southward of 

 the zenith. In the latter direction, where they 

 were thinner, they appeared in the form of strings 

 of disjointed vertical streamers. 



16.00 A glow on a cloud to* the N. 



18.00 Cloud glow to the N. 



22.45 A faint nebulous auroral arc crossing the sky from 

 F.S.E. to AV.S.W. some 5° or 10° S.E. of the 

 zenith; boAved noticeably, with concavity to the 

 S.E. 



23.00 The arc just referred to had straightened and crossed 

 the zenith, trending N.N.E. and S.S.W. 



23.30 Three faint parallel curtains in the zenith and east 

 of it, extending from near the N. horizon to 

 within 20° of the S. horizon, and trending N. 

 and S. 



24.00 Two blobs of auroral nebula in the S.S.E. in the 

 position of the earlier arcs. An auroral haze 

 in the E. 

 21st, 1.45 Tavo curtains, one 30° up in the AY., the other 45° 

 up in the E. The mean direction of trend about 

 N. and S., but bowed concave to the W. An 

 indefinite auoral haze to the E. The night very 

 dark and the sky clear. The aurorae were very 

 faint, and visible only on account of the favour- 

 able conditions. 



