Note 4 — Chapter III · SOME SPECIFIC DESCRIPTIONS OF AURORÆ, INCLUDING RESULTS OF THE ENGLISH ARCTIC EXPEDITION, 1875-76.

M. Lemström (Swedish Expedition, 1868) concludes that the corona of the Aurora Borealis is not entirely a phenomenon of perspective, but that the rays have a true curvature, that they are currents flowing in the same direction and attract each other. There is also an account [antè, p. 16] of an Aurora at Melville Island (Parry’s first voyage), in which two arches were seen curving towards each other.