OF ARTS AND SCIENCES. 



259 



Eesult. 



100.00 



100.00 



99.81 



It is evident that this paper is merely an introduction to the possi- 

 bilities in the direction indicated. Not only have other compounds of 

 the same acids been already discovered, but many other acids, notably 

 hydriodic, lactic, sulphocyanic, etc., show that they are capable of 

 forming similar compounds. Moreover, the substituted ammonias may 

 apparently take the place of the simple substance in most of the com- 

 pounds. A few of these preparations are to be seen in the University 

 exhibit at the "World's Columbian Exhibition. The study of all these 

 interesting substances will be continued in the immediate future at this 

 Laboratory. 



