text:  Another would go softly up to a lady and then suddenly seizing her by the waist would turn and twist her round and round some fifty times till both were evidently giddy with the motion: this was sometimes performed by a few chosen dancers and sometimes by several hundreds at once--all embracing each other in what to our notions would seem rather an odd sort of way and whirling round and round; and though their feet appeared constantly coming in contact with each other a collision never took place