1-8
: 1s+2s also 3s+4s dance 1/2 R&L, all turn RH
9-16
: 1s+4s dance LH across, 2s+1s also 4s+3s dance 1/2 R&L  1 2 3 4
17-20
: 1s+2s cross with Ladies dancing under Mens arch & 1s+2s change places on
  sides with 2s dancing under 1s arm (2)(1)3 4
21-24
: 1s+3s cross with 1L+3M dancing under arch made by 1M+3L, 1s+3s change
  places on sides with 3s dancing under 1s arm (2)(3)1 4
25-32
: 1s+4s cross with Ladies dancing under Mens arch, 1s+4s change places on
  sides with 4s dancing under 1s arm, all set & cross RH  2 3 4 1
33-40
: 3s+4s+1s circle 6H round & back