What has been written applies more especially to the concert-saloon waiter girl, and does not in the least pertain to that other class of girls who are found in what are called dance houses, of which latter there are not a few in this city. There are some very peculiar kinds of females to be found in dance houses and not to be met with outside the abodes of Terpsichore. The term, dance house, itself, is susceptible of various interpretations. It may mean anything from Harry Hill's, at Crosby and Houston streets, to an Italian gathering in Mott or Mulberry street. But the performances carried on are precisely alike in all. In the sporting dance house, a series of boxing matches, small theatrical sketches may be acted, a song or two interspersed, and some piano playing, winding up afterwards with a dance, in which all so inclined may indulge, taking either the regular girls employed in the house as partners, or others who have strayed in from the streets. In the regular dance houses, such as the Haymarket on Sixth avenue, "ladies" are admitted free, but "gentlemen" are charged twenty-five cents admittance, and here regular dancing takes place, such as quadrilles, waltzes, etc. In the French Madame's on Thirty-first street, which is ostensibly a restaurant, the girls come in from the street, and while sipping black coffee, are ready to accept an engagement to dance the _cancan_, which is performed up-stairs in rooms paid for by those desiring to see the questionable performance. It is not infrequently danced by the females in an entirely nude state, with various other concomitants not to be mentioned here, but of such a nature as to horrify any but the most _blasé roué_. There is also the well-known Billy McGlory's, in Hester street, near the Bowery, where general dancing is indulged in until an early hour of the morning, when a universal _cancan_ takes place upon the public floor, and where each female boldly exposes just enough of her person to excite desire in the beholder. These girls dance in ordinary street costumes, and in many cases are paid by the proprietor for their services. It is a wild debauch, and needs but to be seen once, to be ever afterward remembered with disgust and loathing.