[en] Lifetime measurements are reported for two levels in Er II by the beam-foil method. Decay rates were measured for two lines from the 26099 cm-1 level, 3830 and 3896 A, and one line from the 29973 cm-1 level, 3385 A. The results are tau=14+-3 ns (3830 A), tau=15+-3 ns (3896 A), and tau=9+-1 ns (3385 A). (Auth.)