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Abstract
The meteorologic work at Lövånger (64° 22' N, 21°19' E) during the total eclipse on 9 July 1945 included continuous observations of the solar radiation. A Moll thermopile with 80 sets of junctions was used for measuring the radiant energy in different parts of the visible region. It was provided with a cylindrical screen at the upper end of which colour filters were introduced in succession. The device has been earlier described in detail (JOHNSON and OLSSON, 1944). Infra-red screening was achieved by means of the Schott and Genossen filter BG 19 in order to attain a high degree of accuracy in the visible range.