All W petronella to centre & face P | all set ; all W dance RSh round P

All W LHA & face P ; all set | turn RH to P’s place, W face in, M face out (1x,2x,3x)

All W, followed by P, dance round all 3 corners: in & out to next W place cclw passing others RSh (1W to 3W place) | dance to M place ; repeat twice to same places as [17]. 1W path is via 3W, 3M, 2W, 2M, 1W, 1M places (like Schiehallion but passing RSh in centre)

All turn P RH ending W in original place, M in next place cclw (M: 2,3,1; W: 1,2,3)