1-4
: 1s also 4s set & cast 1 place
5-8
: 1s & 4s Petronella turn to end between 2s/3s & 5s/6s then all set
  forming two 3 couple sets across with the "top" on the Ladies side
9-20
: All dance Interlocking 3 couple R&L:

: All dance normal 3 Couple R&Ls but when changing places LH (bars 11, 15
  & 19) the centre dancer in each of the middle 2 rows change places
  with the person diagonally to left in the other set (e.g. at
  bar 11, 1L+6L & 2M+4M change places)
21-24
: All Set+Link for 3 ending on sidelines  6(4)5 3(1)2
25-32
: 4s dance 1/2 Figs of 8 round 6s/5s **while** 1s dance 1/2 Figs of 8
  round 3s/2s (Ladies up. Men down), all turn partners RH.  6 4 5 3 1 2