'224. APPENDIX A. 



crystallization are they not forms of combinations 

 of integrant molecules ? 



Supposing heat due to a vibratory movement, 

 how can the passage from the solid or the liquid to 

 the gaseous state be explained ? 



When motive power is produced by the passage 

 of heat from the body A to the body B, is the quan- 

 tity of this heat which arrives at B (if it is not the 

 same as that which has been taken from A, if a 

 portion has really been consumed to produce mo- 

 tive power) the same whatever may be the sub- 

 stance employed to realize the motive power? 



Is there any way of using more heat in the pro- 

 duction of motive power, and of causing less to 

 reach the body B ? Could we even utilize it en- 

 tirely, allowing none to go to the body B ? If 

 this were possible, motive power could be created 

 without consumption of combustible, and by mere 

 destruction of the heat of bodies. 



Is it absolutely certain that steam after having 

 operated an engine and produced motive power 

 can raise the temperature of the water of conden- 

 sation as if it had been conducted directly into it? 



Reasoning shows us that there cannot be loss of 



