1-4
: 1s+3s Petronella turn & set to partners
5-8
: 1s+3s dance 1/4 reel of 4(i.e. pass RSh) **while** 2s set, 1L+2s+3M
  dance 1/4 reel of 4 across **while** 1M+3L set
9-16
: Repeat 1/4 reel of 4 figure (bars 5-8) twice more from new places (End
  3M+3L+1M+1L in line in centre, 2s in 2nd place opp sides)
17-20
: 1s+3s turn partners 3/4 RH to own sides & 3s+2s+1s set
21-24
: 3s+2s dance 1/2 RH across, 3s+1s dance 1/2 LH across. 2 (1) 3
25-32
: 1s turn 2H 1.1/2 times; dance down & cast up round 3s into 2nd place own
  side

{{explanation}}
Note: Bars 31-32 of 2nd time through, 4s step up into 3rd place while 1s loop into 4th place instead of casting up.