It is possible to obtain an approximate solution of the Boltzmann transport equation which corresponds to assigning a definite scattering time for each electron on the Fermi Surface (F.S.). We have made an estimate of the scattering times when the mechanism for electron scattering is the electron-phonon interaction. Information on the lattice dynamics is taken from the phonon dispersion curves which have been measured by the technique of inelastic neutron scattering. For the electron-ion pseudopotential we employ the model form factors developed by Stark and Falicov. From this information the scattering times are calculated as a function of temperature and position on the F.S. They show considerable variation over the F.S. The electrical resistivity (ϱ) with electric field parallel (ϱ ) and perpendicular (ϱ ⊥) to the c-axis is discussed. The temperature variation of the ratio ϱ /ϱ ⊥ is found to be in qualitative agreement with experiment.