{{explanation}}
On 2nd chord 3c+4c cross to other side (1,2,3x,4x)

1–
: 1c+2c & 3c+4c ½R&L ; All set | all cross RH (2,1,4x,3x)
9–
: 2c+1c & 4c+3c RHA ; 1M (1W following) cast R round 2M and down the middle, to finish 1M/1W facing 3W/2M
  **while{4}** 4M (4W following) cast R round 3M and up the middle, 1M+4M passing Lsh, to finish 4M/4W facing 2W/3M, all in lines across
17–
: 2c+1W+4M & 3c+4W+1M Reels4 across, on last Lsh pass take LH and the M make polite turn to finish 4M+1W between 2c facing 4W+1M between 4c, both NHJ
25–
: 4M+1W & 4W+1M set | petronella in tandem ; turn P RH (2,4,1x,3x)