Though our Free Schools are open to all, experience has taught that vast numbers of children are so ill-clothed and destitute that they are ashamed to attend these excellent places of instruction; or their mothers are obliged to employ them during parts of the day; or they are begging, or engaged in street occupations, and will not attend, or, if they do, attend very irregularly. Very many are playing about the docks or idling in the streets. Twenty years ago, nothing seemed to check this evil. Captain Matsell, in the celebrated report I have alluded to, estimated the number of vagrant children as 10,000, and subsequently in later years, the estimate was as high as 30,000. The commitments for vagrancy were enormous, reaching in one year (1857), for females alone, 3,449; in 1859, 5,778; and in 1860, 5,880. In these we have not the exact number of children, but it was certainly very large. What was needed to check crime and vagrancy among young girls was some School of Industry and Morals, adapted for the class. Many were ashamed to go to the Public Schools; they were too irregular for their rules. They needed some help in the way of food and clothing, much direct moral instruction and training in industry; while their mothers required to be stimulated by earnest appeals to their consciences to induce them to school them at all. Agents must be sent around to gather the children, and to persuade the parents to educate their offspring. It was manifest that the Public Schools were not adapted to meet all these wants, and indeed the mingling of any eleemosynary features in our public educational establishments would have been injudicious. As our infant Society had no funds, my effort was to found something at first by outside help, with the hope subsequently of obtaining a permanent support for the new enterprises, and bringing them under the supervision of the parent Society. The agencies which we sought to found were the INDUSTRIAL SCHOOLS, which I shall now attempt to describe. Each one of these humble charities has a history of its own--a history known only to the poor--of sacrifice, patience, and labor. Some of the most gifted women of New York, of high position and fortune, as well as others of remarkable character and education, have poured forth without stint their services of love in connection with these ministrations of charity. THE WILSON SCHOOL. The School to which allusion has already been made on page 83, as growing out of the Boys' Meeting in Sixth Street, and afterwards in Avenue D, was the first of these Schools, and owes its origin especially to a lady of great executive power, Mrs. Wilson, wife of the Rev. Dr. Wilson. It has always been an exceedingly successful and efficient School. It was formed in February, 1853, the writer assisting in its organization, and was carried on outside of the Society whose history I am sketching. THE ROOKERIES OF THE FOURTH WARD--A REMEDY.