360 Chittenden and Bolton—Egg-Albumin and Albumoses. 
Fibrin products. Egg-albumin products. 
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Deuteroalbumose is seen to contain 0°7 per cent. less carbon than 
egg-albumin, while protoalbumose contains fully 1:25 per cent. less. 
The nitrogen in the two compounds is in accord with the content of 
carbon and the composition of the two products certainly suggests 
hydrolytic action. 
The lower content of carbon in the albumose bodies has been ex- 
plained by some writers on the ground that the precipitants used, 
principally acetic acid, would tend to form an acid compound, and 
that even when dried and ready for analysis, the compound would 
still contain some acid; which fact would be sufficient to account for 
the low content of carbon found. It is to be noticed, however, in 
these results that the deuteroalbumose, not only on an average but 
in each individual case, contains more carbon than protoalbumose, 
which was precipitated by sodium chloride alone without the addi- 
tion of any acetic acid whatever. Further, comparing the two 
preparations of protoalbumose B, one of which was precipitated 
by salt alone and the other by acetic acid, it is seen that the 
percentage of carbon is the same in both. Unquestionably proto- 
and deuteroalbumose both do combine with acids, but after neutral- 
ization and long continued dialysis the albumose body certainly 
exists in a free state, uncombined with either acid or alkali. 
The greater portion of this work was completed before we had any 
knowledge of Dr. Neumeister’s work on the complete separation of 
protoalbumose from deuteroalbumose.|| It was, therefore, too late for 
* See Kiihne and Chittenden, Ueber die nachstén Spaltungsproducte der Hiweiss- 
kérper. Zeitschrift fiir Biologie, Band xix, p. 174. 
+ Average of all the products analyzed. Zeitschrift fiir Biologie, Band xx, p. 40. 
{¢ According to Hammarsten. § Average of all products. 
|| Zur Kenntniss der Albumosen. Zeitschrift fiir Biologie, Band xxiii, p. 381. 
