Some will be found to advocate the exclusion of such searchers for knowledge on the ground that precocious tastes should be repressed in the interests of physical health. But a careful investigation of the facts in such cases can hardly fail to convince one that in them repression is the last thing that will bring about bodily health and vigor. There should doubtless be regulation, but nothing will be so likely to conduce to the health and physical well being of a person with strong mental cravings as the reasonable satisfaction of those cravings. Cases can be cited where children, having what seemed to be a premature development of mental qualities coupled with weak or even diseased bodily constitutions, have rapidly improved in health when circumstances have allowed the free exercise of their intellectual powers, and have finally attained a maturity vigorous alike in body and mind. This is in the nature of a digression, but it can do no harm to call attention thus to the facts which contradict the common notion that intellectual precocity should be discouraged. Nature is the best guide, and it is in accordance with all her workings, that when she has in hand the production of a giant of intellect, the young Hercules should astonish observers by feats of strength even in his cradle. Let not the public library, then, be found working against nature by establishing, as far as its influence goes, a dead level of intellectual attainments for all persons below a certain age. But there is a much larger class of young persons who ought not to be excluded from the library, not because they have decided intellectual cravings and are mentally mature, but because they have capacities for the cultivation of good tastes, and because the cultivation of such tastes cannot be begun too early. There is no greater mistake in morals than that often covered by the saying, harmless enough literally, "Boys will be boys." This saying is used perhaps oftener than for any other purpose to justify boys in doing things which are morally not fit for men to do, and is thus the expression of that great error that immoralities early in life are to be expected and should not be severely deprecated. The same misconception of the relations of youth to maturity and of nature's great laws of growth and development is seen in that common idea that children need not be expected to have any literary tastes; that they may well be allowed to confine their reading to the frivolous, the merely amusing. That this view is an erroneous one thought and observation agree in showing. Much like the caution of the mother who would not allow her son to bathe in the river till he had learned to swim, is that of those who would have youth wait till a certain age, when they ought to have good tastes formed, before they can be admitted to companionship with the best influences for the cultivation of them. Who will presume to set the age at