1-8
: 1s & 4s set, 1s lead down under arch made by 4s who dance up, 1s cast up
  to 3rd place as 4s cast to 2nd place (2s/3s step up/down 5-6) & all
  couples set. 2 4 1 3
9-16
: 2s+4s also 1s+3s dance LH across & RH across back to place
17-24
: 2s+4s also 1s+3s dance reels of 4 across (2M+4L, 1M+3L pass LSh to
  start)
25-32
: All circle 8H round & back. 2 4 1 3