From parallel waves: Those facing in Step Thru and Swing Thru, then Step Thru again. Those facing out Flip into adjacent spot. Finishes in parallel waves. (Roger Howell 1975)
Version #2
From parallel waves: Split Circulate once and a half. Centers of new wave Trade then arm turn the ends of the wave 3/4. Finishes in two faced lines. (Ken Cucore 1975)
Roger Howell and Ken Cucore 1975
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.
