Bürgel, Bruno Hans, 1875-, Bloch, Stella · London, New York, [etc.] Cassell and company, ltd. · leaf 213
Fig. 135.—Spot on the edge of the Sun giving the impression of a depression in the solar globe. (From an observation by the Author on April 13th,H99, at 9 a.m.) … Fig. 136.—Corona of the Sun during the Total Eclipse of May 22nd, 1900. (From a photograph by Edward E. Barnard, Lick Observatory.)
Astronomy
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
