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Scientific American, Vol. 66, No. 21 (1892) (1892)
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ree to move, would take the path A W s, while .a free soft crimson glow tinges the heavens. There is a ceptible to the force which tends to make it point mavpnet (having, of course, two poles) would place itself blush on the cheek of night. The colors come and go, north and south. An increase in… … the line of force which passed through its cen- © 1892 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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