The colored people of the city seldom fall into such helpless poverty as the foreign whites; still there is a good deal of destitution and exposure to temptation among them. The children seem to learn as readily as whites, though they are afflicted with a more sullen temper, and require to be managed more delicately--praise and ridicule being indispensable implements for the teacher. Their singing far surpasses that of our other scholars. Among our other schools is a most useful one for a peculiarly wild class, in the Rivington-street Lodging-house; one in West Fifty-third and in West Fifty-second Streets, and a very large and well-conducted one for the shanty population near the Park, called THE PARK SCHOOL. A very spirited teacher here manages numbers of wild boys and ungoverned girls. The most interesting feature is a Night-school, where pupils come, some from a mile distant, having labored in factories or street-trades all day long--sometimes even giving up their suppers for the sake of the lessons, with a hunger for knowledge which the children of the favored classes know little of. Two other Schools shall conclude our catalogue--one in the House of Industry (West Sixteenth Street), and the other in the Eighteenth-street Lodging-house. Both Schools are struggling with great obstacles and difficulties, as they are planted in the quarter which has produced the notorious "Nineteenth-street Gang." The teacher in the latter has already overcome most of them, and has tamed as wild a set of little street-barbarians as ever plagued a school-teacher. A rigid rule has been laid down and followed out in these Schools--that is, not to admit or retain pupils who might be in the Public Schools. Our object is to supplement these useful public institutions, and we are continually sending the children forth, when they seem fit, to take places in the Free Schools. Many, however, are always too poor, ragged and necessarily irregular in attendance, to be adapted to the more systematic and respectable places of instruction. As been already mentioned, the plan has been steadily pursued from the beginning by the writer, to make these as good Primary Schools as under the circumstances they were capable of becoming. The grade of the teachers has been constantly raised, and many of the graduates of our best training academy for teachers in New York State--the Oswego Normal School--have been secured at remunerative salaries. Within the last four years, also, a new officer has been appointed by the Board of Trustees, to constantly examine the schools and teachers, keep them at the highest grade possible, and visit the families of the children. This place has been ably filled by an intelligent and educated gentleman, Mr. John W. Skinner, with the best effects on our system of instruction.