H. B. Hill —Ethers of Uric Acid. 435 
tate, which, well washed with alcohol, an 
forms an amorphous powder, which has a faint pink color,— 
undoubtedly caused by a trace of alloxan. The dry salt was 
soluble in cold water, though with some difficulty. 
Analysis gave for substance dried at 100°— 
1, 61778 grm. gave 0°1125 grm. CaSO,. 
2, 0°2275 grm. gave 0°1446 grm. CaSO,. 
8, 0°3049 grm. gave 36°8 c.c. nitrogen at 21°°5, and 762°1 mm. press. 
date to the filtrate throws down a bulky semi-gelatinous precip- 
ried at 100°, 
Calculated for Found. 
C,H(CH,)N,0,Ca 1 2 3 
Ca ‘87 18°61 18°69 
N 13°21 13°68 
The analyses 1 and 2 were made with different preparations. 
nasmuch as the chief point was to prov ormation of 
0°2160 grm, left on ignition 0°0902 grm. platinum. 
Calculated for Found. 
(CH,NH,),PtCl, 
Pt 41°61 41°76 
Wes proving that the calcium salt contained the group = 
3° . 
In further confirmation, I was able to isolate common urea 
as the secondary product of the methylalloxan formation. 
€ reaction may, therefore, be written— cH, 
f° 
NH, N—CO 
iia 
C,H, (CH,)N,0,+H,0,=CO sigur 
