  We study in detail the prediction for the semileptonic decays $\bar{B} \to D
(D^*) \pi \ell \bar{\nu}$ by heavy quark and chiral symmetry. The branching
ratio for $\bar{B} \to D \pi \ell \bar{\nu}$ is quite significant, as big as
$(0.5-1)\%$. The branching ratio for $\bar{B} \to D^* \pi \ell \bar{\nu}$ is
only of order $10^{-4}-10^{-5}$. Numerical results for various single particle
spectra and their dependence on the pion momentum cutoff schemes are presented
in a series of figures, as are the model independent ratios for differential
rates of $D$ and $D^*$. We also study the parity-violation effects on the decay
rates for different polarization states of the $D^*$. Figures may be obtained
by anonymous FTP from strange.tn.cornell.edu in the directory pub/CLNS931204,
or by email from the author.
