Abstract
During the transit of Halley's comet across the Sun's disc on May 19, 1910, magnetic observations were made, on the initiative chiefly of Prof. Birkeland, at several places of the globe. The authors thought it, therefore, not uninteresting to have earth‐current observations in this connection made at the Central Telegraph station in Stockholm. Two telegraph lines belonging to the Royal Swedish Telegraph Office, Stockholm ‐ Göteborg and Sundsvall ‐ Stockholm, were used. The geographic co‐ordinates for these three places are as follows:Table I. LATITUDE LONGITUDEStockholm . . . . 59° 21′ 18° 3′Göteborg . . . . . 57 42 11 58Sundsvall . . . . 62 23 17 19
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