These concert saloons provide a low order of music, and the liquors furnished are of the vilest description. In former days the service of the place was rendered by young women; many of whom were dressed in tights and all sorts of fantastic costumes; the chief object being to display the figure as much as possible. The girls were hideous and unattractive, and were foul-mouthed and bloated. The visitors were principally young men, and even boys, though older men, and even gray heads, were sometimes seen among them. The women are prostitutes of the lowest order. They encourage the visitors to drink, shamelessly violate every rule of propriety, and generally ready to rob a visitor who is too far gone in liquor to protect himself. These places are frequented by all classes of society, from the lowest dregs to men and women who claim respectability, and occasionally a man and his family are seen in these places. Ruffians, bent on robbery, keep a close watch on the visitors, and when one of the latter, overcome with liquor, staggers out of the place, follow him, lure him into a back street, rob him, and if necessary to their safety, murder him. Oftentimes they lure their helpless victims to the river front, and there rob and kill him, and throw his body into the water, where it is found by the harbor police. The dance halls are often handsome places, but were simply rendezvous of street walkers, and men who came to seek their company. The principal establishment of this kind was the infamous Apollo theatre and dance hall, previously mentioned. All were admitted free. We enter through a lobby into bar-room, back of which is the dance hall. The place was furnished with tables, and chairs are scattered about the sides of the first floor, but the central space is kept clear for dancing. The galleries are also provided with tables and chairs. At the back is a dimly lighted space, fitted up like a garden, where those who desire may sit and drink. The place was always well filled. The women present were the inmates of the neighboring houses of ill-fame, and street walkers. Each one is a prostitute, and each one is intent upon luring some man into her chamber. The men are mostly young, but on “gala-nights” and during the “balls” which were given here in the winter of 1877, would cause the givers of the First Ward annual ball to turn green with envy. An orchestra in the gallery opposite the entrance provides the music, and the dance is on. The air is heavy with tobacco smoke. Men and women are constantly passing in and out; drinking is going on in every part of the hall. In spite of its brilliancy and splendor, the place is but one of the numerous gateways to hell, with which Chicago abounds.