We are in a cellar about ten feet square, and this is separated from others like it by a partition. We are really in one room of a big cellar stretching under a crowded tenement house over our heads. We look around us; and as soon as our eyes get accustomed to the darkness--for the only light is from the narrow width of glass, reaching from the ground up to the floor which forms the ceiling of the room where we stand--we see that this is the den--for you cannot call it anything else--of an old man and his wife. They have both passed threescore. Their locks are white, and they are no longer able to work as hard as formerly. [Illustration: SICK MAN IN UNDERGROUND APARTMENT.] They have had children, but they are dead. The two old people, waifs from bonny Scotland, have probably made their last move, until the city sends around its rough box and dead-cart to take them to their last sleep in the Potter's Field. They used to live up-stairs; but as they grew older, and were not so spry as formerly, they could no longer pay the rent, and therefore moved down till at last they are at the bottom. For this den of misery, in which a well-to-do Western farmer would not think of keeping his hog, they pay one dollar per week. They have to cook, eat, sleep, and do everything else pertaining to domestic life, in this one dark, filthy hole. The combination of smells is indescribable. But as you begin to sicken and are ready to flee, you remember, with a shock, that what sickens you so in five minutes this old white-headed man and his wife have to endure day after day, and night after night, and on--and on--there is no hope of anything better this side of a pauper's grave. Don't blame these old people for not keeping their den clean. Nobody could keep it clean. There is no sunshine, and only a little while in the day any light at all. It is necessarily damp and mouldy. We talk with the old man. He goes fishing and does such odd jobs as he is able. He says one of the worst things with which they have to contend is the rats; and then he points out places in the wall, down next to the ground, that he has filled with little billets of wood, stuck in every-which-way, in his efforts to keep the rats from preying on them, at night. Let us foot up the column.