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Introduction to the Study of Science 



It is impossible to give here even a bare outline of the story ; 

 but students may find in histories of invention and encyclo- 

 pedias interesting accounts of the lives and achievements of 

 the men who contributed to the development of the steam 

 engine. Here we may merely mention the names of James 

 Watt, Thomas Newcomen, Richard Trevithick, and George 

 Stephenson. Richard Trevithick built in 1802 a road steam 



FIG. 90. The "Stourbridge Lion," the first locomotive brought from Eng- 

 land to America (1829). How is the power applied to the driving wheels? 



engine, and in 1804 a track steam engine, both of which startled 

 the world by their speed and power. George Stephenson's 

 pygmy engine of 1815 and his record-making " Rocket " of 

 1829 are instructive forerunners of the modern locomotive. 

 Mention must be made also of the Stourbridge Lion (Fig. 90), 

 the first locomotive to be brought from England to America, 

 in 1829. Among American inventors we may name John L. 

 Stevens, who in 1826 designed and built the " first locomotive 

 made in America, driven by steam, upon a track " ; and Peter 

 Cooper, who, in addition to his other noteworthy achievements, 

 constructed the historic " Tom Thumb " steam engine. 



