An intelligent observer, who has been there, accurately defines the difference between the “Boston dip”—the entrancing salutatory recreation of the aesthetic damsels of the Hub, and the “Mabille Waltz,” from which its moat ravishing peculiarities were borrowed. He says: “In the “MabiT.o,’ the lady does nut touch her feet to the floor during the waltz. She depends wholly on her partner, in whose arms she lies while lie carries her around by main force. In the American modification the lady is permitted to keep her feet upon the floor. The c:uples commence as in the ordinary waltz, until a sufficient headway is established, when, at a signal, the dip is commenced. The lady crosses her feet, and her partner, by the aid of tier peculiar motion, is enabled to carry her, as it were, in his arras, through the dance. This, although seemingly laborious, is very easy, and to the experienced dancer does not require as much strength on the part of the gentleman as cne would suppose. The dip movement compels a closeness of tae persons of the dancers which is heightened by a complexity of circumstances and conditions that need not bo detailed.” | We believe the dip has not yet become popular in fa. hionable circles hereabout.