110 DEATH AND RESURRECTION. 



shaped, the ingots must be melted and 

 cast into frames, shafts, bearings, etc.; 

 in short, the raw material must be 

 formed into all those numerous parts 

 of which the machine is composed. 

 The engine is from beginning to end a 

 product of art. 



There is especially one circumstance 

 pertaining to all these transformations 

 that merits a closer attention. If we 

 remember that all the material used in 

 a product of art is taken from nature, 

 and besides that, all the processes in 

 making and shaping the raw material 

 are carried out through the employ- 

 ment of natural laws, we might still 

 ask the question, why physical forces 

 should not enter spontaneously into the 

 necessary artificial combinations for 

 producing this result. Until we have 

 pointed out the quality in matter which 

 prevents this, we have not completely 

 demonstrated the inability of natural 

 forces to build an engine spontane- 

 ously. 



This quality has been named vis 



