Compounds of Albumin and Myosin. By 
Srriss III. 
No. Amt. sub. taken. Wt. Fe.Os. Per cent. Fe.O;. Per cent. Fe. 
la 0:4710 0:-0071 1:50 1:04 
0°53829 000838 1°55 1:08 
2a 07387 0:0100 1°36 0:94" 
0°6355 00087 1:36 0°94 
Series IV. 
la 04862 0:0063 1°30 0-90 
b 0°5558 0:0073 1-31 0:91 
2a OF oO 00070 1°36 “95 
b 0:4954 0-0066 1:33 92 
3a 04505 0:0068 1:39 0-97 
b 0-4610 00066 1°43 0-99 
4a, 0°4817 0-0071 1:47 1:01 
b 04571 00065 : 1:44 0-98 
5a 04819 00065 1°34 0-93 
b 0°3846 0-0051 1°33 0°93 
6a 04086 0:0059 1°45 1:00 
b 03392 00048 1-41 0:97 
Ta 03814 0:0050 1°32 0-91 
b 0:4107 00058 1:29 0:90 
8a 04452 0:0058 1:30 0:91 
b 0-4833 0-0065 1:34 0-92 
These results show a fairly close agreement with one single excep- 
tion, in which case the percentage of iron is nearly 0°25 below the 
average. The average percentage, moreover, of ferric oxide is just 
about one-half that found by Rose. Further, the average percentage 
of iron (Fe) corresponds very closely with the average percentage of 
Cu in the copper albuminate. Eliminating one compound with ouly 
0°75 per cent. of iron, the average content is seen to be 0°95 per cent. 
(Cy2Hi12Nis8Oo2)4 + Fe—H;=0°86 per cent. Fe. 
(C72H112Ni«SO22)3 + Fe—Hs=1°14 per cent. Fe. 
As the iron was determined by simple ignition it would be ex- 
pected that the amount found would exceed the theoretical amount 
somewhat; hence the first formula, assuming Lieberkiihn’s formula 
to be correct, would be more closely in accord with our results. The 
results obtained indicate further, that the iron albuminate is a much 
more stable compound than the copper albuminate, less liable to 
change and less readily affected by water. 
