This conception of the grained structure of matter is very ancient; traces of it are to be found in Indian philosophy, perhaps twelve centuries before the Christian era, and the Greek philosophers Democritus and Epicurus, in the 3rd and 4th centuries B.C., taught it very definitely.
The seeds are roasted and eaten by the natives; the timber, which somewhat resembles walnut, is soft, fine-grained, and takes a good polish, but is not durable.
The heartwood varies in colour from dark brown to pale yellowishbrown; hard, close-grained, and little liable to split accidentally, it is, for a hard wood, easy to work.
In diameter; the wood is strong, hard and close grained; the acorns are produced in great quantity, and are used by the Indians as food.
The wood is coarsely grained, as in all the red-oak group, but harder and more durable than that of Q.