Abstract
This is a continuation of the paper read in April, 1908, in which, after describing the mode of extracting Scandia from the mineral wiikite, the principal salts, 23 in number, were described, their formulæ and analytical results being given in detail. Since that publication, G. Eberhard, of the Astrophysical Observatory, Potsdam, reasoning from the fact that the strongest lines of the Scandium spectrum are observed in the spectra of stars in diverse stages of development, has come to the conclusion that Scandium must be universally distributed on the earth. Investigating the arc spectra of 366 minerals and rocks, he obtained the remarkable result that Scandium in small quantities is actually one of the most widely distributed earth elements.
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