Gallium arsenide. Symposium proceedings

point defects, extended defects and thermal vibrations alike, it is impressive how models of very complicated physical situations lead to reasonably simple predictions for the scattering properties. Very few workers in this area are sufficiently familiar with both the static and dynamical aspects of disorder scattering: the attempt at a unified presentation of these topics is especially to be commended. Inevitably some of the comparisons with experiment already require updating, but the real value of the book is its strong insight into the structure of the theory of scattering in complicated solid state situations. J. A. D. MATTHEW Department of Physics University of York Heslington York England