1-8
: 1s turn RH, cast (2s step up) & petronella turn (1L between 2s facing
  down, 1M between 3s facing up). 1s set as 2L+3M change places RH
9-12
: 1s petronella turn to 2nd place opp sides. 1s set as 2M+3L change places
  RH. All now on opp sides (3) (1) (2)
13-24
: 3s+1s+2s dance R&L for 3 couples (omit polite turn bar 24)
25-32
: 3s+1s+2s turn RH to Ladies facing up, Men facing down & all chase
  clockwise 1/2 way. End 2 1 3