J. W. Mallet— Constitutional formula of Urea, e 



Art. XXXVL— On the constitutional formula of Urea, Uric 

 Arid, and their d^irivatives ; by Professor J. W. Mallet, 

 University of Virginia. 



?-4 



S if 

 i. i 



Nos. 2 to 9 show, for the sake of comparison, some of the 

 numerous formula?, which have of late years been given for 

 this important substance. 



2. Uric acid, Baeyer* and Kolbe.f 3. Uric acid, Hufner4 



'^ H 'ii 

 H-i i Lu 



H-U H i 



dJUJ 



L Uric acid, Mulder.§ 



5. Uric acid, E 



rlenmey* 



iXrrij 



U-JJ 



i i I 



• Ann. der Cbem., cavii, 236. 

 tJoan>.filrpr.ktChe».., 11,1.134. 





, fiir prakt. Chem., 11, i , . ,„„^ 



i Bericht. d. deutsch. chem. Gesellsch., vi, 1237. 

 I Miinch. Akad. Ber., ii, 276. 



