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1 
Of Nutrition. 
The life of an animal depends upon 
the exercife of different functions, which 
phyfiologifls have agreed to call vital, na¬ 
tural, and animal. Whilfl thefe Various 
proceffes are going forwards, the body 
experiences continual Ioffes, which would 
foon put an end to it were they not quickly 
repaired. From hence arifes a neceffity for 
food, which the animal feeks with eager- 
nefs, being impelled to it at firft by inftindt, 
and afterwards preffed by inftindt and a 
fenfation of pleafure. 
The-fub fiances, which are taken in as 
food, undergo two great proceffes, which 
are thofe of chylification and fanguification. 
When they are by thefe means once ani. 
malized, they become proper for nutrition. 
Nutrition is the work of blood-Veffels. 
Their number, as well as their minutenefs, 
is extreme, and the power by which they 
X a feledfe 
