1-8
: All circle 8H round & back
9-16
: 1s+3s advance NHJ & with free hand join with 2s & 4s, retire into
  longwise set across the dance; all dance 1/2 parallel RSh reels of 4
  across
17-24
: All dance 1/2 R&L at each end of set (across to start); end couples &
  middle couples turn RH 1.1/2 times to form Sq.Set
25-32
: All Ladies petronella turn to next Ladies' place to right & set, repeat
  to meet partner (all have progressed 1 place to right), Ladies face
  out
33-48
: All dance full Schiehallion Reel.  2 3 4 1