330 Chittenden and W hitehouse— Metallic 
son of the two series shows plainly that there is something in the 
nature of the second myosin solution, which tends to raise the content 
of uranium in the uranyl compounds; probably, the greater concen- 
tration or dilution of the solution. Evidently, then, the composition 
of the compound is, in part at least, determined by the conditions 
under which the uranyl] salt and the myosin solution are brought 
together. The average amount of uranium contained in the prepa- 
rations is 7°49 per cent. 
J. Mercury compounds. 
By adding a solution of mercuric chloride to an ammonium chlo- 
ride solution of myosin, a heavy gelatinous precipitate is formed 
which soon changes to a flocculent one. Freed trom the excess of 
mercury salt and ammonium chloride, the compound is found to be 
entirely free from chlorine. The substance is somewhat soluble in 
sodium hydroxide, swelling up first and then gradually dissolving. 
Dried at 110° C. and then analyzed, the following results were ob- 
tained. The mercury was determined as already described under 
mercury albuminate. 
Series I, 
No. Amt. Sub. taken. Wt. of Hg. Per cent. Hg. 
la 0-7609 gram. 0-0166 gram. 2718 
b 1:2911 0:0268 . 2°07 
2a 1°2386 00270 2°17 
b 0°9525 0-0198 2-07 
da 171856 0-0218 1°84 
b 09261 0:01738 1°86 
4a 1-3504 0°0257 1:90 
b 09382 00178 1:90 
Series I. 
1 0°8917 0°0241 2°70 
2 11196 0-0310 2°77 
3a 0:95387 00271 2°84 
b 088138 0:0259 2°93 
4 09209 00270 2°93 
5 08352 0-0241 2°89 
6 08564 00217 2°53 
Ta 1:0696 00844 3°22 
b 0°8550 0:0264 3°09 
