RADIOACTIVE DECAY OF Sn$sup 11$$sup 1$

Sources of 35-min ${\mathrm{Sn}}^{111}$ were made by the reactions ${\mathrm{Sn}}^{112}(\ensuremath{\gamma},n){\mathrm{Sn}}^{111}$, ${\mathrm{Sn}}^{112}(n,2n){\mathrm{Sn}}^{111}$ and ${\mathrm{Cd}}^{110}({\mathrm{He}}^{3},2n){\mathrm{Sn}}^{111}$. The ratio $\frac{\mathrm{ec}}{{\ensuremath{\beta}}^{+}}$ was determined to be 2.7\ifmmode\pm\else\textpm\fi{}0.2. The following gamma rays were observed by scintillation techniques: 750, 970, 1140, 1540, 1590, 1890, 2110, and 2320 keV. The following levels in ${\mathrm{In}}^{111}$ are proposed, based on coincidence studies and transition probabilities: 970, 1140, 1540, 1890, 2110, and 2320 keV.