Heads Part: Like a Grand Square except there is no turning. Walk into the center four steps, slide (sideways) to the side position four steps, back up four steps, then slide to the head position to reverse the procedure and return home.
Sides Part: Face partner and back up four steps. Slide sideways to the head position in four steps. Walk into the middle in four steps and then slide out to the side position in four steps to reverse the procedure and return home.
Chip Hendrickson 1967
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.