1-8
: 1s+2s set on sides, turn 2H & open out into 4H round to left
9-12
: All set & dance Triple Petronella: 1s & 3s petronella turn to next
  corner **while** 2s petronella turn into lines across (L facing down M
  facing up)
13-16
: All set & repeat to end opposite sides (3)(2)(1)
17-24
: All set, cross (3s & 1s with RH & 2s with LH), 2s dance RH across (Lady
  with top couple & Man with bottom couple)
25-32
: 3s+2s set, Petronella-in-tandem, change places RH with person facing &
  Petronella-in-tandem to own sides. 2 3 1