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Acids nor Alcalies, like Milk. 3. Emulli- 
ons prepared with Grain or Seeds, like 
Milk, turn four, from the mealy Parts in 
them; but Emulfions made with Oil, from 
a want of that Meal, turn rancid. The 
Whitenefs of the Milk, and the Butter it 
yields, fhew Plenty of Oil in it, every 
where divided and mix'd with it, Whey or 
Water, as does the Cheefe its earthy Parts. 
4. However intimately this Oil and Wa- 
ter are mix’d, or united in Milk, yet it con- 
tains alfo abundance of farinaceous and ear- 
thy Parts, and acid Juices in the Herbage, 
which is the Reafon it turns four, not ran- 
cid. 5. Animal Food, containing Grain or 
Seeds, abounds with much Oil, which be- 
ing chewed in the Mouth, fwallowed and 
mix’d with the Saliva of the Mouth, Jaws, 
Gullet, and Stomach, turn white, or whi- 
tifh ; yea, if chewed long in the Mouth, and 
well watered with Spittle, it turns white 
there. 6. We fee Oil is a conftituent Prin- 
ciple in Vegetables, and that the Fat in 
Animals derives its Origin from hence, lince 
it can be prepared and extracted from Ve- 
getables by chewing, Rumination, and the 
chilific Power of the Body. 7. The Afcen- 
fion 
