92 SUPER-ORGANIC EVOLUTION 



relations, and thus they were able to found a new 

 cosmogony. 



Newton succeeded in fixing the relation of 

 quantity through which the persistence of these 

 phenomena exists, and in formulating the law of 

 gravitation, by which the precise terms of these 

 relations are established. 



Lavoisier, by his celebrated experiment, demon- 

 strated the indestructibility of atoms, which, on 

 uniting to form composite bodies, preserve their 

 individuality, mass, and weight, resulting in a 

 combination equal to the sum of the weights of 

 the component parts. From one single apparently 

 insignificant fact the genius of that illustrious man 

 contributed to strengthen the parallelism between 

 the external and internal series. 



The simultaneous demonstration achieved by 

 Mayer and Joule of the mechanical equivalent of 

 heat served to establish the great principle of the 

 equilibrium of forces. 



The ability to measure the velocity of light and 

 electricity has served to demonstrate the analogy 

 between them. Spectral analysis proves to us the 

 solidarity of the universe and discloses its very 

 elements. 



Lamarck and Darwin showed the inconsistency 

 of the idea of species, and established the theory 

 that all animals may have descended from one 



