Originally published in 1935, as the second edition of a 1919 original, this detailed and informative textbook consists of a broad and expansive collection of examples which have been taken from papers set for the courses of lectures at the Cambridge Engineering Laboratory and from the A and B papers of the Engineering Tripos. This second edition has been enlarged and revised, and the questions, papers I to XL, have been arranged under headings indicating the various parts of the subject. In papers XLI to L, the questions are varied and of a general character, catering for beginners in the subject as well as more advanced students. Notably, answers to all of the set questions can be found at the back. This dynamic book will be of considerable value to anyone with an interest in thermodynamics, engineering and physics as well as to anyone with an interest in the history of education.