70 Dr P rout's Experiments on the CJumges which take place 
ceous principle. A portion of this oily principle was found to 
be soluble in alcohol, the solution having a bright yellow colour ; 
and, in short, to possess all the properties of the yellow oil exist- 
ing in the yolk. The yolk at this period has become more 
fluid, paler, and, as is rendered probable by the above table, 
although the fact be denied by Haller, heavier. These appear- 
ances of the albumen and yolk have induced with some a belief 
that an interchange of principles takes place between them, 
while others seem to have mistaken the yellow modified albu- 
men for the yolk itself. That an intermixture of principles 
has really taken place, there can be little doubt ; yet the two 
are not indiscriminately mixed ; for when the egg has been pre- 
viously boiled, the yolk, though softer than natural, is never- 
theless rendered of a firmer consistence than the modified albu- 
men, and can thus be readily separated from it ; there being 
besides a distinct line of demarcation betwixt them, arising, ap- 
parently, from the proper membrane of the yolk. Another 
argument in favour of the opinion in question, is derived from 
the following analyses of these constituent principles of the egg, 
from which it will be found that the quantity of saline matter 
is diminished in the albumen, and increased in the yolk. It is 
a singular and striking fact, however, that although the oily 
matter has made its way to the albumen, very little of the phos- 
phorus, which exists in such large quantities in the yolk, has 
been removed from it. 
r~— 
No. . 
I. 
1 
No. II. 
1 
5 3 
%< 
6 
i -o 
JL« T-< 
8 ^ 
X O 
c* X 
a3 
.5 
o 
0 
Potash, 
Soda,& 
Curb, of 
ditto. 
Lime, 1 
MagneJ 
& Caib.l 
of do 
3 ns 
•S o 
(A 
J 5; 
X U 
X 
a3 
.s 
’S 
3 
Potash, 
Soda, & 
Carb. of 
ditto. 
Potash,! 
Magne.| 
& Carb. 
of do. 
fUnchanged albu- 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
Gr. 
men, 
Modified albu- -v 
men, liquor f 
.13 
.27 
.19 
1.03 
" 9 
.18 
.18 
.24 
1.50 
.12 
amnii, ani- C 
mal, mem- | 
brancs, &c. ^ 
.08 
.38 
.45 
U 7 
• 12 j 
| 
l 
.10 
.25 
.30 
.70 
.12 
I 
Yolk, 
.09 
4,03 
.60 
.80 
.68 t 
.08' 
4.00 
. 56 
.75 
.67 
.30 
4,68 
1 1.24 
3.00 
.98 >f 
.36 
4.43 
1.10 
2.95 
.91 
