Radioactive Scandium. II

${\mathrm{Sc}}^{47}$: This radioactive isotope has been reported to have a half-life of 2.62 days and to emit 1.1 Mev electrons. These observations are not confirmed. A new radioactive isotope has, however, been produced by bombarding calcium with alpha-particles and to some extent by bombarding calcium with deuteron and proton. It emits beta-rays of 0.46 Mev and has a half-life of 3.4 days. The assignment is made to ${\mathrm{Sc}}^{47}$.