The blocks represent the various elements in the school system and are intended to indicate roughly the length of time given to each division, and also the overlapping, both in time and in subjects studied, of the individual parts of the system. With each block is given the historical conditions in which it arose and its ruling ideal. The school system, upon the whole, has grown from the top down. During the Middle Ages it was essentially a cluster of professional schools—especially law and theology. Our present university comes down to us from the Middle Ages. I will not say that at present it is a mediaeval institution, but it had its roots in the Middle Ages, and it has not outlived all mediaeval traditions regarding learning. The kindergarten, rising with the present century, was a union of the nursery and of the philosophy of Schelling; a wedding of the plays and games which the mother carried on with her children to Schelling’s highly romantic and symbolic philosophy. The elements that came from the actual study of child life—the continuation of the nursery—have remained a life-bringing force in all education; the Schellingesque factors made an obstruction between it and the rest of the school system—brought about isolations. The line drawn over the top indicates that there is a certain interaction between the kindergarten and the primary school; for, so far as the primary school remained in spirit foreign to the natural interests of child life, it was isolated from the kindergarten, so that it is a problem, at present, to introduce kindergarten methods into the primary school; the problem of the so-called connecting class. The difficulty is that the two are not one from the start. To get a connection the teacher has had to climb over the wall instead of entering in at the gate. On the side of aims, the ideal of the kindergarten was the moral development of the children, rather than instruction or discipline; an ideal sometimes emphasized to the point of sentimentality. The primary school grew practically out of the popular movement of the sixteenth century, when, along with the invention of printing and the growth of commerce, it became a business necessity to know how to read, write, and figure. The aim was distinctly a practical one; it was utility; getting command of these tools, the symbols of learning, not for the sake of learning, but because they gave access to careers in life otherwise closed.