1-8
: 1s dance in & cast to 2nd place (2s step up); 1s dance 1/2 Fig (1L up
  round 2s, 1M down round 3s) to 2nd place opp sides. 2 (1) 3
9-16
: 2s+1s+3s dance reels of 3 on sides, RSh to 2nd corner (1M up, 1L down)
17-24
: 2s+1s+3s dance DoSiDo; all chase 1/2 round clockwise. (3) 1 (2)
25-32
: 1s dance petronella turn & set, twice to end 2nd place opp side. (3) (1)
  (2)

{{explanation}}
2nd time through: 1s start from 2nd place opp sides, end 3rd place own side & slip to bottom.  
Starting positions 1st time:  1 2 3 4;  3rd time (3) (4) 1 2;  5th time (2) (1) (3) (4);  7th time  4 3 (2) (1)