1-8
: 1s followed by 2s+3s+4s cast to 4th place, dance up & cast back into
  places
9-16
: 1s+2s also 3s+4s Set+Link, 2s+1s also 4s+3s circle 4H round to left
17-24
: 2s+1s also 4s+3s dance the Knot with 1s ending between 2s
25-32
: 1s dance the Spurtle: 1s dance 1/2 reel of 4 with 2s & turn partner RH
  to face 3s, 1s dance 1/2 reel of 4 with 3s & turn partner RH to
  face 4s
33-40
: 1s dance 1/2 reel with 4s & turn RH to 4th place opposite sides, all set
  & cross RH 1s ending in 4th place