former instructor at the Detroit Motor School, created this work to serve as an engaging educational resource for boys interested in mechanics and engineering. The book covers various topics related to gas engines, starting with the basic principles of operation, including the four-stroke cycle and the anatomy of engine components like cylinders, pistons, valves, and ignition systems. Using relatable analogies, such as comparing the piston to a bullet in a cannon, Faurote simplifies complex concepts, encouraging young learners to understand how gas engines function in a straightforward and engaging way. Illustrations accompany the text to provide visual explanations, making the mechanics of gas engines comprehensible to readers with little to no prior knowledge. Overall, the book serves as both an introduction to automotive engineering and a valuable reference for young enthusiasts seeking to explore the world of gas engines. (This is an automatically generated summary.)