A catechism of the steam engine and its various applications to mines, mills, steam navigation, railways, and agriculture
A question-and-answer technical manual on steam engines by British civil engineer John Bourne, issued in New York by D. Appleton in 1876 for engineers, mechanics, and students. The 60 figures are line-engraved sectional and elevation drawings of cylinders, valves, governors, and boilers, dense with hatching and letter keys — useful for machine-part silhouettes and cutaway diagram conventions.



























































