1-4
: 1s & 3s Petronella turn to centre (2s & 4s step up 1-2), 1s face 2s, 3s
  face 4s (1M+2L, 1L+2M, 3M+4L & 3L+4M) & all set
5-8
: All turn facing person RH, 1s & 3s finish in line up/down middle (Men
  facing up, Ladies facing down)
9-16
: 1s+3s dance reel of 4. Bars 15-16: 1M+3L turn LH (not pass LSh) to end
  Ladies facing up, Men facing down
17-20
: 1L followed by 3L dance up & cast to3rd/2nd place **while** 3M followed
  by 1M dance down & cast up to 2nd/3rd place (4s step down 19-20).
   2 3 1 4
21-24
: 3s+1s circle 4H round to left
25-32
: 1s+4s (at bottom) dance the Bourrel. End 2 3 4 1