352 DIRECT PROPERTIES OF MOLECULES 124 



causes, strives after the same end as the kinetic theory of 

 gases ; for all these endeavours are aimed at explaining all 

 natural phenomena as the result of motion. If this 

 endeavour is successful we shall have, together with the 

 theory of gases, not only a kinetic theory of liquids and of 

 solids, but also a kinetic theory of atoms and force, of 

 electricity and light. 



