Complete in itself this is the part two of a five part course in physics, the others being General Physics, Light, Sound, Magnetism and electricity. 148 pages packed with technical information plus line drawings of apparatus and experiments, graphs and formulae. Book is bright and clean just the lightest of foxing on first and last few pages, wrapper a little darkened on edges and on spine. Overall a pleasing copy SEE IMAGE. DETAILED IMAGES AVAILABLE ON REQUEST.