{{explanation}}
3s & 4s start on opp sides

1-8
: 1L & 4L followed by partners cast 1 place into centre, 2s+1s also 4s+3s
  RH across
9-16
: 1s+4s LH across **while** corners chase clockwise to other end of
  set, 3s+1s also 4s+2s 1/2 Ladies Chain
17-24
: All 1/2 LSh reel of 4 on sides, Ladies set diag **while** 2M+4M
  also 1M+3M turn RH, 2s+4s also 1s+3s dance 1 place on clockwise to end
  facing partners
25-32
: 4L+2M & 3L+1M & 4M+2L & 3M+1L Set+Link on sides, end couples turn
  RH 1.1/2 times **while** centre couples turn RH once to end 2 4 1 3
33-40
: All circle round & back