and some of its Products of Decomposition. 335 



the following consideration. If upon separating the fumaric 

 acid, it were to unite with uncombined glycocoll, there would 

 arise a compound containing the elements of asparaginic acid. 



C 4 H 4 NO.+C, Hp3=C 8 H 5 NQ 6 



Fumarate of glycocoll. Asparaginic acid. 



8. Two atoms of glycocoll contain also the elements of alio- 

 phanic ether.* 



2(C 4 H 4 NOJ==C 4 H 5 0,C 4 H 3 N 2 



v 



Glycocoll. Ether. Allophanic acid- 



9. Hydrated glycocoll contains the elements of nitric ether. 



C 4 H 4 N0 3 , HO-C 4 H 5 O, N0 3 . 



Here are two bodies of the most opposite properties, one fluid 

 and volatile, the other solid and cannot be sublimed. 



We have a similar instance in the two forms of chlorid of 

 cyanogen ; the volatile discovered by Gay Lussac and the solid 



1 



•a liquid and a 



by Serrullas- 



We hav< 

 solid body. 



10. Two atoms of glycocoll and one of ammonia contain the 

 elements of the creatine of Chevreul, recently analyzed by Liebig. 



2(C 4 H 4 NO,) +NH 3 = C 8 H M N 3 



* 



V 



— Y — » 



Glycocoll. Creatine. 



11. The base derived, by Liebig, from creatine, by boiling 

 *ith baryta water, which separates urea (as C0 2 and NH 3 ), 

 contains the elements of glycocoll and oxyd of methyl. It con- 

 tains also the elements of the Lactamide of Pelouze. 



°. H , , IM\ - C^H, N^O, = C 6 H 7 N0 4 = C 4 H 4 NO,, 



Creatine. uTeT New base. Glycocoll. 



C a H 5 4 , NH 3 



, r ' 



°*yd of methyl. Lactamide. 



It will no longer seem strange that a body having so many re- 

 lationships as are here exhibited, should find its place in the 

 established classes of chemical compounds with difficulty. 



The conclusion to which we have arrived in the progress of 

 { he investigation above recorded, is, that glycocoll may at the 

 sa «»e time be an acid, a base, and a salt, since it has properties in 

 common with each, that distinguish each from the other two. 

 , In the possession of such a variety of attributes as attach to 

 these three classes of bodies, glycocoll is without example m 

 chemistry. 



* Liebig' s Annalen, Bd. lis, s. 292. 



