Music, both vocal and instrumental, would be taught to all, but only those more gifted by nature would be educated to perform solo. Nearly all persons can be trained to sing part-music pleasantly and intelligently, and to perform moderately on some instrument. The cultivation of the musical faculties harmonizes the mind, and affords a never-failing source of solace and recreation. The attempt to convert all persons into solo performers, and the hypocritical applause with which their discordant notes are indiscriminately greeted, deprives society of the pleasures which part-music well performed would afford, by encouraging all to attempt what they are pretty sure to do badly, to the exclusion of what they would be equally likely to do well. We have reserved for the last, to enumerate what is, perhaps, the most important of all the subjects of instruction. TO ALL children, so soon as they can be promoted from the _kinder garten_--perhaps even to the higher grades therein--instruction in the conditions of human well-being, and in the phenomena and arrangements of social life should be given, and should be continued throughout their school career. What! teach political economy to children? Even so. It will be conceded, that to teach the future laborers the laws by which the wages of their labor will be regulated, how high wages may be secured and low wages prevented--to teach the future capitalists the laws by which their profits will be determined, how large profits may be secured, and loss, failure, crises, and panics avoided--must be a desirable, if it be a practicable thing. Is it practicable? The experience of twenty years has proved that it is. The experiment has been tried by Mr. Wm. Ellis, the wise and noble founder of the Birkbeck schools of London, England, who not only devoted his surplus means to the endowment of true schools, but gave also his time to instruct in the principles of the science of human well-being--alike the poor children by whom his schools were attended and the children of the Queen of England. He also instructed and trained a corps of teachers, professional and volunteer, and by one of the latter a class was conducted in the winter of 1867, '68 at the Normal School of this city of some 35 to 40 teachers engaged in the practical work of teaching in our common schools, who, under his guidance, became, after a short course of some twenty or more lessons, enthusiastic advocates for the introduction of this study into the schools; for not only does it teach the conditions of industrial success, but it is also a science of morals and of ethics far more worthy of the attention it has never yet received in this or, indeed, in any country, than that which is given to what goes under the name of moral teaching and training. It is by gradual steps--by the employment of the Socratic method of instruction--with a rare use of text-books, that the most intricate problems of this science can be unfolded to pupils with