in the fixed principles of the egg during incubation. 393 
degree. The albumen has also acquired a very firm con- 
sistence, especially when coagulated by heat. The liquor 
amnii has become more fluid, and the modified albumen, for- 
merly mentioned, has very much diminished in quantity, or 
disappeared.* The yelk, which at the end of the first week 
seemed to have increased in bulk and fluidity, has now ap- 
parently acquired its original size and consistence. The fol- 
lowing are the results of the analyses of the constituent prin- 
ciples of the above two eggs. 
No. 1. 
Sulphuric 
Acid. 
Phospho- 
ric Acid. 
Chlorine. 
Potash, 
Soda, and 
Carb. of 
Ditto. 
Lime, Mag- 
nesia, and 
Carb. of 
Ditto. 
Grains. 
Grains. 
Grains. 
Grains. 
Grains. 
Unchanged albumen. 
.07 
.22 
.09 
•73 
.IO 
Liq. amnii, membranes, &c. 
.06 
.21 
•7 1 
.96' 
.08 
Animal - 
.06 
.23 
.09 
.46 
.27 
Yelk 
•3° 
3-34 
.ib 
.68 
.69 
•49 
4.00 
i.c 5 
GO 
00 
ci 
1.14 
No. 
2. 
Unchanged albumen. 
.1 1 
.19 
.23 
•97 
•°9 
Liq. amnii, membranes, &c 
.03 
.20 
•7° 
1.07 
.08 
Animal - 
.06 
.24 
.07 
•44 
.28 
Yelk - - - 
.20 
3-30 
.10 
.42 
.70 
.40 
3-93 
1.10 
2.90 
1.15 
• About this time Harvey, and other observers, have noticed the appearance 
of a curdy or coagulated substance in the oesophagus, crop, stomach, and intestines 
of the animal. Is this a portion of the modified albumen above mentioned ? 
MDCCCXXII. 3 E 
