564 ROSE ON THE ANHYDROUS SULPHATE OF AMMONIA. 



aethyle — aetherol), the latter the deliquescent salt, contained in the 

 mother-water, from which the parasulphat-ammon is separated 

 by crystallization. 



Much value, however, is not to be attached to these com- 

 parisons, for they merely refer to a certain analogy or combina- 

 tion, which may be even called a remote one, since bicarburetted 

 hydrogen and ammonia differ with respect to the number of 

 their elements. 



This parallel becomes still more improbable, on account of 

 the different properties of the substances compared, they pos- 

 sessing not the least resemblance to each other. 



