1-8
: 1s followed by 2s+3s+4s cast to bottom on own sides, dance up & all
  curve out to original places
9-16
: 1s+2s & 3s+4s Set+Link, 2s+1s & 4s+3s circle 4H round to left
17-24
: 2s+1s & 4s+3s dance the Knot, 1s end BtoB between 2s on opposite sides
25-32
: 1s dance the Spurtle: 1s dance 1/2 RSh reel of 4 with 2s & turn RH, 1s
  dance 1/2 reel of 4 with 3s & turn RH to face 4s
33-40
: 1s dance 1/2 reel of across with 4s & turn RH to 4th place opposite
  sides, all set & cross RH