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PLATE CLXIL MULTIPLE AURORAL ARCS. 



From sketches and observations made on Aug. 29, 1902, 2 hr. A.M. ; looking N.-E. 

 from Winter-quarters Bay. 



A very frequent feature in the auroral displays seen in M'Murdo Sound was a 

 brilliant pale yellow glow of light in the gaps between the hills. The vertical 

 rays which soon arose from this would then arrange themselves to form an arc, 

 which gradually rising from the horizon, was followed by another, and another. 



The uppermost of these might then begin to break and wave and fold into a 

 curtain, gradually rising to the zenith, where it occasionally culminated in a corona 

 of radiating beams or folding streamers. 



