CONSTITUENTS OF THE UNIVERSE. 



these three sources, for the reason that there 

 are no others; and for the additional reason 

 that there is no rest or stand-still. 



VI. The consideration of a few simple facts 

 will assist in arriving at a better appreciation 

 of these propositions. 



VII. Motion, then, is either curved or 

 radial. 



VIII. Curved motion is also spiral. 



IX. Motion exhibits changes or modifi- 

 cations. 



X. Changes, or modifications of motion 

 follow, or occur only through contact, bom- 

 bardment, or collision of two or more move- 

 ments. 



XI. A single, or simple motion alone will 

 not change its mode radically, if at all; but 

 only a change of location in space results. 



XII. Motion cannot be eliminated or de- 

 stroyed, but may be modified or changed; and 

 that is all there is to the so-called conserva- 

 tion of energy. 



