The Steam Engine: Its Invention and Progressive Improvement, an Investigation of Its Principles, and Its Application to Navigation, Manufactures, and Railways. By Thomas Tredgold, Civil Engineer, Member of the Institution of Civil Engineers; Author of Elmentary Principles of Carpentry; A Practical Treatise on the Strength of Iron, &c. In Two Volumes, with One Hundred and Twenty-five Engravings and Numerous Wood-cuts