From a wave: Ends Trade as centers arm turn 3/4 and spread. Original ends Quarter In and step up into a wave and with the new ends arm turn 3/4. Finishes in box formation.
NOTE: If started from a right hand wave, the intermediate wave is left hand; if started from a left hand wave, the intermediate wave is right hand.
Ted Shaw 1975
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.