1G4 



THE MODERN THEORY OF CHEMICAL TYPES. 



Ammonia gives another type, thus : 



AMMONIA TYPE. 



I 



Ethylamine and Aniline are examples of this type, and are thus represented : 



Ethylamine. Aniline. 



The sizcn of these hydrogen and ammonia types are equal to that of the 

 water type, viz : four volumes. 



With this preliminary illustration the following table (from Graham Otto's 

 Lehrbuch) may be quoted : 



