A J Pointon and D Elwell London: Longman 1970 pp xi + 338 price £5 The inclusion of a well balanced physics course in electronics and electrical engineering undergraduate courses plays an important part in the training of engineers by providing not only the formal discipline of the observation of natural phenomena and the consequent deduction of their underlying causes but also the excitement of intellectual discussion in topics such as the second law of thermodynamics and the uncertainty principle. From a wide range of subject matter at their disposal, the authors' choice adequately reflects these two points.