Page:Vitruvius the Ten Books on Architecture.djvu/88

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solid stucco to split. But since some are obliged to use it either to save time or money, or for partitions on an unsupported span, the proper method of construction is as follows. Give it a high foundation so that it may nowhere come in contact with the bro­ken stone-work composing the floor; for if it is sunk in this, it rots in course of time, then settles and sags forward, and so breaks through the surface of the stucco covering.

I have now explained to the best of my ability the subject of walls, and the preparation of the different kinds of material em­ployed, with their advantages and disadvantages. Next, follow­ing the guidance of Nature, I shall treat of the frame-work and the kinds of wood used in it, showing how they may be pro­cured of a sort that will not give way as time goes on.


CHAPTER IX

TIMBER


1. Timber should be felled between early Autumn and the time when Favonius begins to blow. For in Spring all trees become pregnant, and they are all employing their natural vigour in the production of leaves and of the fruits that return every year. The requirements of that season render them empty and swollen, and so they are weak and feeble because of their looseness of texture. This is also the case with women who have conceived. Their bod­ies are not considered perfectly healthy until the child is born; hence, pregnant slaves, when offered for sale, are not warranted sound, because the fetus as it grows within the body takes to itself as nourishment all the best qualities of the mother's food, and so the stronger it becomes as the full time for birth approaches, the less compact it allows that body to be from which it is produced. After the birth of the child, what was heretofore taken to pro­mote the growth of another creature is now set free by the deliv­ery of the newborn, and the channels being now empty and open, the body will take it in by lapping up its juices, and thus