The Ripple Galop and the Jersey are two galop variations found in both M. B. Gilbert's Round Dancing (Portland, Maine, 1890) and George Washington Lopp's La Danse (Paris, 1903), a French translation of Gilbert with some additions and changes. Both variations use the late nineteenth-century American waltz-galop technique of a leap along the line of dance followed by a side step and a cut (or close of the feet) in the rhythm "1&2" rather than the slide-chassé of the galop, extending it into the "Newport" pattern of a leap along the line of dance followed by a series of side-closes, stretching the basic step-unit from one to two measures. The key difference is where the side steps and closes fall relative to the strong beats of the music:
galop: 1 (side) & (close) 2 (side)
waltz-galop: 1 (back/forward) & (side) 2 (cut/close)
The galop pattern ends in an open position. The waltz-galop normally does as well, but it can also be ended elegantly at the end of the music by a close of the feet rather than a cut. This alteration of the relationship of movements to music in dances of the "new waltz" family is what makes these variations interesting to me.