434 H. B. Hili—Ethers of Uric Acid. 
plates, readily soluble in water, sparingly soluble in alcohol, 
which gave a precipitate with an alcoholic solution of zincic 
chloride. These crystals melted at 105°, and sublimed readily 
at 100°. They were evidently sarcosine formed from the de- 
composition of methylhydantoin 
Oxidation of Methyluric Acid with Nitrie Acid, 
By the oxidation of methyluric acid with nitric acid, a solu- 
tion is obtained which gives a deep red coloration on warming 
salt. The ordinary method, following closely the directions of 
Schlieper,+ gave me, however, a salt containing but a trace of 
nitrogen and with percentages of barium, carbon, and hydro 
gen, closely approximating those required by a basic baric 
mesoxalate, BaC,O,.BaO,H,. At th trong 
smell of methylamine was perceived. If a smaller quantity of 
baric hydrate were added in the cold, and then alcohol in ex- 
Cess, 4 barium salt was thrown down which contained nitrogen, 
the methylalloxanate, but no better results were obtained. 
bonie dioxide, afterwards diluted with six or eight volumes of 
alcohol and filtered. The cautious addition of ammonic hy- 
* Ann. Chem. u. Pharm, ly, 261. + Ibid., 272. 
