The poorer classes are to be met with in all parts of the city, but they are most numerous along the East and North rivers, and between Fourteenth and Canal streets. The majority of them are, beyond a doubt, honest, and willing to work, and in times of great commercial activity nearly all can find some means of employment; but in dull seasons, when merchants and manufacturers are forced to discharge their employés, thousands are thrown out of work, and the greatest suffering and distress prevail in the poor districts. Besides these there are thousands of vagrants, drunkards, and disreputable persons, who would rather steal, or beg, than work, and whose misery is frightful. We must not be understood as intimating that all who desire employment can procure it in New York. Indeed the contrary is the case. Labor and skill of almost every kind are in excess here. For every position of regular labor there are at least five applicants, so that four fifths of the poor have to resort to any and all means to maintain an honest existence. Some of these means it is our purpose to notice separately. THE LOWEST DEPTHS. You will see the extremes of poverty and want in and about the Five Points district. In the day time half-clad, filthy, emaciated creatures pass you on the gloomy streets, and startle you with the air of misery which they carry about them. At night these poor creatures huddle into cellars, so damp, foul, and pestilential that it seems impossible for a human being to exist in them. The walls are lined with "bunks," or "berths," and the woodwork and bedding is alive with vermin; the floors are covered with wretched beds in a similar condition. The place is either as dark as midnight, or dimly lighted with a tallow dip. Sometimes a stove, which only helps to poison the atmosphere, is found in the place, sometimes a pan of coals, and often there is no means of warmth at hand. Men, women, and children crowd into these holes, as many as thirty being found in some of them. They pay a small sum to the wretch who acts as landlord, for the privilege of receiving this shelter from the cold night. The sexes are mingled carelessly, and the grossest indecency prevails. The air is loaded with blasphemy and curses, and is heavy with such foul odors that one unaccustomed to it cannot remain five minutes in the place. The attics of the lowest class of tenement houses are no better than these cellars. They are colder, and more exposed to the elements, but the suffering in them is no greater. TENEMENT HOUSES.