physical conditions adapted to that sort of life; say, a hilly, woody slope, near mountains and a river where fish would be abundant. Then they go on in imagination through the hunting to the semi-agricultural stage, and through the nomadic to the settled agricultural stage. The point I wish to make is that there is abundant opportunity thus given for actual study, for inquiry which results in gaining information. So, while the instinct primarily appeals to the social side, the interest of the child in people and their doings is carried on into the larger world of reality. For example, the children had some idea of primitive weapons, of the stone arrowhead, etc. That provided occasion for the testing of materials as regards their friability, their shape, texture, etc., resulting in a lesson in mineralogy, as they examined the different stones to find which was best suited to the purpose. The discussion of the iron age supplied a demand for the construction of a smelting oven made out of clay, and of considerable size. As the children did not get their drafts right at first, the mouth of the furnace not being in proper relation to the vent, as to size and position, instruction in the principles of combustion, the nature of drafts and of fuel, was required. Yet the instruction was not given ready-made; it was first needed, and then arrived at experimentally. Then the children
