Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, A.C. Armstrong and son · leaf 106
my Elementary Physical Geography ), showing where thenorthern and southern magnetic poles lie. Again, you^^ill see from the northern map, that from Englandthe northern magnetic pole lies towards the west of duenorth. That is why when we see a fully developed 94 THE AURORA BOREALIS. auroral arch in… … i Fig. 9-—The Northern Magnetic Meridians and Lines of Equal Dip. \!iit magnetic poles and lines ; in this place I merely notethat what is now said respecting them only refers to thepresent time. The formation of auroral streamers around the mag-netic poles of the earth shows that these light? ^re…
Astronomy
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