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Rev. T. W. Webb’s Aurora. Arc resolved into sets of streamers moving in opposite directions.

The Rev. T. W. Webb has described to me in a letter an Aurora very like that seen by Carl Bock in Lapland, and apparently the prevailing type in those regions. An arc similar to that figured by Carl Bock appeared in the N.W., and seemed to resolve itself into two sets of streamers moving in opposite directions (or the one set might be fixed and the other moving), like the edges of two great revolving toothed wheels. This lasted but for a few seconds; but during that interval the tints were varied and brilliant, including blue and green.