Mineral Causes. 115 



microscopical crystals of the same family type, solidly 

 cohered together. Thus is inviolable likeness ob- 

 tained in each mineral in the only way possible. 

 Likeness in every plant and in every animal is also 

 assured through a similar process, but the unit in 

 their case is a cell. 



Section 3. Energy: 



The energy of simple crystals is rudimentary. The 

 whole process consists in a mere accretion or cohesion 

 of the ultimate atoms and molecules of crystalline 

 substance. Still, two ways of building up material 

 are open, an orderly and a disorderly ; the two methods 

 constituting the difference between a labourer who 

 only dumps stones on the ground, and an architect 

 who constructs a magnificent temple of the same. 

 Nature counts both labourers and architects among 

 her subservient and omnipotent automata (her laws), 

 each of which she uses discriminately and indiscrimin- 

 ately (though never intentionally) to an end. Con- 

 sequently she exhibits, through her automatism, both 

 her orderly and disorderly proclivities even in the 

 evolution of simple crystals. Thus in the amorphous 

 deposits of quartz, Iceland spar, and rock-salt, mere 

 indiscriminate piling up of the ultimate atoms or 

 molecules of each substance takes place. On the 

 other hand, in the internal structure and design of 

 these substances, we see method, order, and the evi- 

 dence of a discriminate designing force. 



The laws which rule this order and disorder in all 



