Chittenden and Bolton—Egg-Albumin and Albumoses, 355 
Dysalbumose. 
This form of albumose was found in all three digestions, but the 
amount was much smaller than noticed in the fibrin digestions. The 
substance was obtained as an insoluble residue, after extracting the 
first sodium chloride precipitate successively with 10 and 5 per cent. 
salt solutions and with water. It was then dissolved in 02 per cent. 
hydrochloric acid, and after filtration precipitated by neutralization. 
After precipitation in this manner, a portion of the substance was 
found soluble in sodium chloride and on dialysis of the solution, sep- 
arated in much the same manner as heteroalbumose. The portion 
still insoluble in salt solution was then washed thoroughly with 
water and lastly with alcohol and ether. Not enough of the albu- 
mose was separated from any one digestion for analysis, but by unit- 
ing the products from all three, sufficient was obtained for the 
following analytical data: 
I. 0°2537 gram substance gave 01500 gram H,O=6°57 per cent. H 
and 04550 gram CO,=48'92 per cent. C. 
II. 0°3700 gram substance gave 46°3 c.c. N at 13°8° C. and 761°3™™ 
pressure= 14°96 per cent. N. 
II. 0°1354 gram substance gave 0:0069 gram ash=5'09 per cent. 
The ash-free substance therefore contained 51°52 per cent. C, 6°92 
per cent. H, 15°79 per cent. N. The ash was composed wholly of 
ferric oxide. 
The peculiar behavior of dysalbumose after solution in either 
dilute acids or sodium carbonate and neutralization, shows plainly 
that the substance is simply heteroalbumose rendered insoluble by 
action of the sodium chloride. Dysalbumose, wholly insoluble in 
sodium chloride, is readily dissolved by sodium carbonate of 1 per 
cent., and on neutralization of the alkaline fluid is in great part pre- 
cipitated. The substance however, is now soluble in sodium chlor- 
ide and has evidently been reconverted into heteroalbumose. It 
is very apparent, however, from our results that heteroalbumose 
from egg-albumin is not so readily converted into dysalbumose by 
the action of sodium chloride, as heteroalbumose from fibrin. In 
all three of our experiments, the amount found was very small. 
Further, it would seem as if heteroalbumose from albumin was 
somewhat more resistant to the action of alcohol and ether than 
heteroalbumose from fibrin. Still the former did become quite 
rapidly insoluble in sodium chloride after standing under alcohol 
