It is unfortunate that drawings were not made on each occasion the aurora was 

 seen, the lack of diagrams greatly increasing the difficulty of working up the results. 



In all that follows, unless it is specifically stated to be otherwise, the times are 

 those of the 180th meridian and the directions are astronomical. 



The position of Cape Evans Winter Quarters is Latitude 77 38' 24" S., Longitude 

 166 24' 7" E., so that time of the 180th meridian is approximately 54 minutes in 

 advance of local time. Hours are numbered from 1 to 24, 1 hour being, therefore, 

 approximately the time at which the sun was due south from the station. The 

 magnetic declination at Cape Evans was about 154| East and the dip about 86 26'. 



A typical example of the changes in aurora seen at Cape Evans is furnished by 

 the auroral observations of May 1st to May 3rd. The general course of the variations 

 during that period was as follows : 



May 1st. 



From 1 hour to 6 hours, no aurora was seen at the exact hours, though the 

 sky was clear. A faint cloud-like patch was, however, seen between North and 

 North 20 East at an altitude of 8, at 4.10 a.m. 



At 7 hours, faint streamers were observed between N.E. and S.E., rising to 

 an altitude of 35. 



Observations were discontinued until 22 hours, when an incomplete arch, 

 broken in the centre, was seen to extend from S.W. by S. to E.N.E. The arch 

 was faint, the maximum altitude being about 50. 



At 23 hours, the aurora was still faint, in the form of a discontinuous arch of 

 maximum altitude 20, extending from E.N.E. to S.S.E. 



At 23.55, the aurora was bright, in the form of three parallel arches extending 

 from S.W. by S. to N.W. by N. almost across the zenith. These arches gradually 

 coalesced and moved N.W. across the zenith, developing folds. The maximum 

 brightness occurred just before crossing the zenith at 0.04 on May 2nd. There 

 was little motion of detail and no colour could be seen. Unsuccessful attempts 

 were made to take photographs at this time. 



May 2nd. 



The aurora was very faint at 0.18, the eastern limb at this time having moved 

 round to north, the western limb remaining stationary. At the same time, a low 

 faint arch of 10 altitude was seen between N.N.W and W. 



The aurora at 1 hour was in the form of a single, broad, ill-defined arch 

 extending across the zenith from North to S. by W. 



At 1.30, three broad, parallel, hazy bands were seen in the western hemisphere, 

 of which the uppermost extended from North to S.S.W. across the zenith, and the 

 lowermost was at an altitude of 30 at its maximum. 



At 2 hours, the only aurora visible was a very faint hazy patch of light in 

 the S.S.W. 



