Recent Improvements in the Steam-Engine: In Its Various Applications to Mines, Mills, Steam Navigation, Railways, and Agriculture, Being a Supplement to 'the Catechism of the Steam-Engine'. E-book. Formato PDF John Bourne   -  Forgotten Books, 2017  - 

The steam engine, however, it appears to me has now nearly fulfilled its, destiny; and I believe it to be on the eve of supercession by other motors, which will differ materially from the existing steam engine.