632 



Heat and Work. 



NIL .'.:. _ ifl 



55257. 1:10. 



55 262. 



55 263. 1 



:.:. LT(>. Sectional Model of a Cylinder with simple Slide Valve, F i g u r e, of wood 



.V>._':>6 a. - - i (1 c in, of iron, smaller, about 3 / s the si/e , 



::.. -':>7. - idem, with Farcot Slide Valve, F i $ \\ r e, of wood 



V..258. - - i d e m, of iron, smaller, about :! . the si/e 



55,2f>!t. - - i d < MI, with Meyer Compound Slide Valve, F i <r u r e, of wood . . . . 



55,260. --idem, of iron, smaller, about 3 / 5 the size , 



:>:>._'<>!. -- idem, with Rider Slide Valve, Figure, of iron 



55,262. - - i d e m, with Woolf Slide Valve, F i <r u i e. of wood , . . , 



55,262 ;i. - - i d e m, of iron, smaller, about 3 / 5 the si/,e 

 55,268. idem, different -pattern, Figure, 







5. 



8. 



7. 

 12. 



7. 

 12. 

 12. 



6. 



8. 



of iron !>. 



(I 6217, 

 4899, IN'.i.l. 

 BM1, 

 3691, 1884 



s. d. 



0. 



0. 



0. ( 



0. d 



0. 



0. 



d. 



0. U 



0. 



0. (I 



