1-8
: All face partner & dance 1/2 Grand Chain (2 bars per hand) & face
  partner again.  3 4 1 2
9-16
: All dance interlocking reels of 4 (pass partner RSh to start).
  Bars 15-16: all 1/2 turn partner RH to Men facing in, Ladies facing
  out
17-24
: All dance Double Men's Chain (Men LHA in centre). Finish NHJ with
  partner.  3 4 1 2
25-32
: All set & Petronella in Tandem 1 place anticlockwise, set & turn
  partner 2H & remain facing partner.  4 1 2 3