How it works: dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc. and with their applications to apparatus in common use

Intends to give the principles of a wide variety of techniques and inventions. Chapters on the steam-engine; the conversion of heat into motion; the steam turbine; the internal-combustion engine; electrical apparatus; the telegraph and wireless telegraphy; the telephone; dynamos and electric motors; railway brakes and signalling; optics (lenses and the camera); the microscope, telescope and magic lantern, the bioscope; sound and music; wind instruments; talking-machines (the phonograph and gramophone); the wind; hydraulic machinery; heating and lighting; various mechanisms. Illustrated with drawings and photographs.

Part of the Bill Douglas and Peter Jewell Collection