1-8
: 1s set, cross down 1 place, cast behind 3s & cross up to 2nd place on
  own side
9-16
: 2s+1s+3s dance reels of 3 on sides (1s out & up to start)
17-24
: 3s followed by 1s+2s lead up to top & cast to end 2 1 3
25-32
: 1s+3s dance RH across, 2s+1s dance LH across
33-40
: 2s+1s+3s circle 6H round & back