Gentlemen,—The subject which I purpose bringing up for discussion to-day appears to be one which is well suited to debate by such a meeting as this. The various proposals are comparatively new in literature, and more so in open debate by learned societies. It is a matter which you, as mental experts, are eminently fitted to give valuable opinions upon, few other associations having any knowledge of, or interest in, the conditions of mental life and growth which are alone responsible for the origination of these proposals.