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PLATE CLXIV. AURORAL CORONA. 



From sketches and observations made in Winter-quarters Bay on May 31, 1903, 

 4 hr. P.M. ; looking to the zenith. 



The form of corona here shown was the production of a rising series of arcs 

 which followed one another upward from the horizon, slowly changing, folding, 

 evanescing first here, then there, till overhead, though for a few moments only, the 

 form of a crown appeared, and passed rapidly, but with a strange appearance of 

 deliberation, out of sight. 



