﻿134 RELATION OF ATOMIC HEAT TO CRYSTALLINE FORM. 



10. That two or more atoms of one element may replace one of another, and retain 

 the same figure; and vice versa; hence, equal numbers of atoms are not essential to 

 isomorphism. 



11. That similarity of constitution is generally, though not always, accompanied 

 by sameness of combined heat. 



12. That at certain temperatures, the elements may all be made to assume the 

 same form. 



13. That variation in the atomic heat of a body is accompanied by variation in its 

 form. 



14. That atomic heat is the cause of isomorphism and polymorphism, — consequently 

 of crystalline form in general. 



Is caloric, through its affinity for, and active influence upon ponderable matter, the 

 primary physical cause of all crystallization ? 



