We report out-of-plane and in-plane resistivities of detwinned La2-xSr
xCuO4 crystals. it is found that the conduction along the c-direction
within the twin boundaries is not at all negligible compared with the
intrinsic conduction along the c-axis within a domain. The anisotropy
in the in-plane resistivity is interpreted as due to anisotropic scatt
ering. by phonons.