48i THE CENTURY, 



Then again, at page 66 : &quot; K K, L L, the barrels of 

 the forces, which force the water ;&quot; p. 67. &quot; E, a barrel 

 of brass or wood fastened in the well, K, a force fitted 

 into it.&quot; Again, &quot; the force must be very heavy;&quot; 

 p. 71. &quot; B, a barrel of iron or brass, fastened in the 

 midst of the cistern, with a force fitted unto it ;&quot; p. 72. 

 &quot; The force is linked, and it is noted with the letter D,&quot; 

 (in the engraving.) Again, u F, the barrel of the force, 

 fastened within two or three inches of the bottom of the 

 cistern ;&quot; p. 73, &quot; C, a force, D, the forces barrel.&quot; 

 Again, &quot; the force draweth the water out of the cistern 

 B, into the barrel D ;&quot; p. 74, &quot; another strong iron bar 

 as I I, unto each end whereof must be linked a force ; 

 K K. the two barrels of the aforesaid forces&quot; 



In the 21st volume of Philosophical Transactions, 

 published in 1700, there is a description, with an 

 engraving, * being, &quot; An account of Mr. Thomas 

 Savery s engine for raising water by the help of fire.&quot; 

 It states that Mr. Savery, on the 14th of June, 1699: 

 u Entertained the Royal Society with shewing a model 

 of his Engine for raising water by the help of fire, 

 which he set to work before them ; the experiment suc 

 ceeded according to expectation, and to their satisfaction. 

 The Engine may be understood by the draughts of it, 

 where Fig. 1 is the front of the Engine for raising 

 water by fire ; and Fig. 2, the side prospect of the 

 Engine. 



&quot; A, is the furnace ; B, the boiler ; C, two cocks 

 which convey the steam from the bottom in order to 

 discharge it again at the top ; D, the vessels which 

 receive the water from the bottom in order to discharge 

 it again at the top ; E, valves ; F, cocks which keep up 



* The original drawing is preserved in the archives of the Royal Society, coarsely 

 executed on paper, measuring 24 by 27 inches. 



