1-8
: 1s+4s cross RH, cast 1 place down/up (2s+3s step up/down) & dance RH
  across ending 1s between 2s & 4s between 3s all facing up
9-16
: All PdB coupe 4 times (popular version - All coupe PdB 4 times)
17-24
: 1s+2s also 3s+4s dance RSh reels of 4 across finishing by dancing to
  original places 1 2 3 4
25-32
: All circle 8H round & back
33-40
: 1s cross RH (2s do not step up), cast to 2nd place, cross LH & cast to
  bottom (2s+3s+4s step up bars 39-40)

{{explanation}}
Note:  Guide to SCD has bars 33-40 1s cross RH, cast 1 place, cross RH again & cast to bottom place