1-8
: 1s+2s set & Petronella-in-tandem twice to end with 2s+1s on opposite
  sides having changed places. (2) (1) 3
9-16
: 2s+1s set, 2s cross RH **while** 1s 3/4 turn LH; 1L+2s (at top) & 1M+3s
  dance RH across
17-24
: 1s+3s Set+Link & circle 4H round to left. 3s face down, 1s face up ready
  for …
25-32
: 2s+3s+1s dance Grand Chain (2s cross, 3s+1s change places RH on sides)