THE GROWTH OF THE STEAM-ENGINE. 



x 5 



plain that there are blows to take, hoping that there may be as many 

 and as hard to give, and will strive to be the worthy knight and 

 champion of her from the blaze of whose splendors he draws his 

 inspiration and his courage. 



THE GKOWTII OF THE STEAM-ENGINE. 



Br Professor E. H. THUESTON, 



OF THE STEVENS INSTITUTE OF TECHNOLOGY. 



Fig. 1. The Grecian Idea of the Steam-Engine. 



1 This sketch is condensed from lectures originally written for delivery to an audi- 

 ence of engineers and mechanics, at the Stevens Institute of Technology, in the winter 

 of 1871 "72, and from lectures since prepared for classes in the Department of Mechani- 

 cal Engineering, and revised to date. The most novel portion referring to the practi- 

 cal realization of the " perfect steam-engine " is here more fully developed than it had 

 previously been, and the paper, as a whole, is for the first time here published. The 

 illustrations are principally from Stuart and Farey, and from the article " Steam-Engine," 

 prepared by the writer of these lectures for Appletons' Cyclopaedia, new edition. 



Avery complete history of "The Growth of the Steam-Engine" has been prepared by 



