Is it because a stronger grain needs more nourishment, and a weaker a light and thin one? Now barley is weaker and laxer than wheat, therefore it affords but little nourishment. And, as a farther testimony to this reason, wheat, that is ripe in three months, grows in dryer ground; because it is juiceless, and stands in need of less nourishment, and therefore is more easily brought to perfection.