Formerly too, the most attentive and patient observation of the progressive development of the mental faculties of a child were necessary to enable a parent to adapt his education to the sphere of life in which nature had destined him to move. Innumerable obstacles were to be encountered in tutoring his mind to the comprehension of the profession for which he was intended; and, perhaps, after years of incessant toil and intense parental anxiety, the young stripling blasted all the hopes of his kindred, by either becoming the hero of a racefield or the magnus apollo of a grog shop, or distinguished his manhood by the puerile follies of youth, or the incurable stupidity of an idiot. But the "March of Mind" has obviated or removed all these difficulties, by the discovery of the renowned science of phrenology. A parent, in this blessed age of intellectual illuminism, may by an examination of certain craniological protuberances, ascertain with mathematical exactness, whether his child is a hero or a coward, a philosopher or a--fool; and may regulate his education in conformity to the result. The safety and well being of society, too, is thus encompassed with additional safeguards, which will effectually protect it from those evils which have heretofore been only partially suppressed by legislation. If any ill favored monster of the human species happens to have the organ of destructiveness largely "developed," (_ut verbum est_) and not counteracted by any antagonist organ,--all the murders, rapes and thefts which he is morally certain to perpetrate,--with their attendant train of want, calamity and ruin, may be at once prevented by hanging the scoundrel in terrorem, as a kind of scarecrow to all evil doers. A desideratum in political economy will thus be also attained. The accounts of those "caterpillars of the commonwealth," clerks, sheriffs, lawyers, _et id omne genus_, who swarm around the treasury in verification of the old maxim of Plautus, "_ubi mel, ibi apes_,"--(Anglice--Where there is money, _there_ are lawyers,) are balanced without the payment of a cent; for it is obvious that there is no necessity for all the tedious formalities of a trial at law, the guilt of the murderer being already ascertained and summarily punished by this _preventive_ justice, and the commonwealth of course exempted from the expense of a prosecution.