1-8
1s set, cast 1 place, dance down between 3s & cast up to 2nd place
9-16
1s cross RH, cast to right & dance 3/4 way round set to end 1M between 2s facing down &1L between 3s facing up while 2s+3s dance R&L
17-28
2s+1s+3s dance 3 couple R&L (start by changing place RH up/down)
29-32
All set & 1s petronella turn to 2nd place own sides while 2s & 3s cross RH
33-40
1s dance diag R&L with 2s+3s to end 3 1 2 4
2nd time through, ends 3 4 1 2, 1s step to bottom & 3s become new 1s