  Using data collected by the CLEO II detector at the center-of-mass energy on
or near the Upsilon(4S) resonance, we have determined the 90% confidence level
upper limit B(Bbar --> Lambda_c^+ e- X)/B(Bbar --> Lambda_c^+ X, Lambdabar_c^-
X) < 0.05 for electrons with momentum above 0.6 GeV/c. We have also derived the
ratio B(B^- --> Lambda_c^+ pbar e- nubar_e)/B(Bbar --> Lambda_c^+ pbar X) <
0.04 at the 90% confidence level and measured the ratio B(Bbar --> Lambda_c^+
pbar X)/B(Bbar --> Lambda_c^+ X, Lambdabar_c^- X) = 0.57 +- 0.05 +- 0.05.
