Book, Paragraph

 1  IV,  3 |      divides into whey and curd. Oil by itself is affected in
 2  IV,  5 | viscosity. For in some cases, in oil and pitch for instance,
 3  IV,  6 |         varieties melt them, but oil does not. For the opposite
 4  IV,  7 |        more earth.~The nature of oil presents the greatest problem.
 5  IV,  7 |        water, for any mixture of oil and water is thicker than
 6  IV,  7 |         water as the heat in the oil is dissipated. The effect
 7  IV,  7 |   neither the sun nor cold dries oil), not only because it is
 8  IV,  7 |       air: honey of earth, while oil contains air. Milk and blood,
 9  IV,  8 |       preponderance of air, like oil and quicksilver, and all
10  IV,  9 |       substances a greasy steam. Oil does not boil away or thicken
11  IV,  9 |    contains fat and behaves like oil. It does not solidify under
12  IV,  9 |          inflammable, but pitch, oil, wax are inflammable in
13  IV,  9 |        smoke, while the fumes of oil and oily substances are
14  IV,  9 |        that give off fumes, like oil and pitch, belong rather
15  IV,  10|        or of water and air, like oil. Those liquids which are
16  IV,  10|      more than one element, like oil and honey, and "sweet wine".~