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Scientific American, Vol. 56, No. 9 (February 1887) (1887)

leaf 8

An illustration from Scientific American, Vol. 56, No. 9 (February 1887), 1887, leaf 8
to doubt that lightning was but an immense electric discharge between two felouds, Fig. 2 represents an aurora that was observed or a discharge between a cloud and the earth. on the 19th of November, 1871, in Finnish Lap- land. At the beginning, and at 30° above the This discovery was of great… … served in northern countries, and that is the one city, and that it is due to slow movements of Mg, 4.-AirB0BAL LIGHT ABOTrND THE SITHMIT OF A H01TNTAIN. that is seen to occur above clouds, and that has that fluid, while lightning is the result of violent the appearance of a wide piece of drapery…

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