A great deal has been said lately about the danger of overpressure, or requiring too much mental work from a child of tender years. The danger exists; but lies, not in giving the child too much, but in giving him the wrong thing to do, the sort of work for which the present state of his mental development does not fit him. Who expects a boy in petticoats to lift half a hundredweight? But give the child work that Nature intended for him, and the quantity he can get through with ease is practically unlimited. Whoever saw a child tired of seeing, of examining in his own way, unfamiliar things? This is the sort of mental nourishment for which he has an unbounded appetite, because it is that food of the mind on which, for the present, he is meant to grow.