22 



THE POPULAR SCIENCE MONTHLY. 



cler the designation of " steam turbine," it has been applied with some 



satisfactory effect to the production of very high velocity of rotation. 



13. We now come to the first instance in which the expansive 



Fig. 5. Branca's Steam-Engine, a. d. 1629. 



force of steam is supposed to have actually been applied to do impor- 

 tant and useful work. 



In 1663, Edward Somerset, second Marquis of Worcester, published 

 a curious collection of descriptions of his inventions, couched in ob- 



Edwabd Somerset, Second Marquis of Worcester. 



scure and singular language, and called a " Century of the Names 

 and Scantlings of Inventions by me already practised." 



One of these inventions is an apparatus for raising water by steam. 



