{{explanation}}
2s & 4s start on opp sides

1-8
: All set, all full turn 2H to 1s facing down to 2s & 3s facing 4s. All
  set & all 3/4 turn facing person 2H to end in lines across, Ladies
  BtoBin centre
9-16
: 1s+2s also 3s+4s dance 3/4 reels of 4 across & all 3/4 turn partner RH
  to end with 1s & 3s on Men's side & 2s & 4s on Ladies' side (Lady on
  Man's left)
17-24
: 1s+2s also 3s+4s dance RH across; 1s+2s also 3s+4s dance 1/2 Ladies'
  Chain
25-32
: 1s+2s also 3s+4s dance 1/2 R&L; 1s+4s dance 1/2 R&L. End 2 (4) 1 (3)