""How To Build A One-Half Horse Power Motor Or Dynamo (1894)"" is a guidebook written by Arthur Eugene Watson that provides detailed instructions on how to construct a motor or dynamo with a power output of one-half horse power. The book covers the necessary tools, materials, and techniques required to build the motor or dynamo, including how to wind the coils, assemble the commutator, and construct the frame.The book is divided into several chapters,...