From lines facing in or out: Centers step forward and California Twirl. Ends Quarter In, step forward and Star Thru. Finishes in double pass thru formation.
NOTE: Center couples in the line must be "regular" and the ends of the line must be opposite sexes.
Bill Jordan 1967
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.