1-8
: 1L followed by partner casts 1 place & crosses to 2nd place opposite
  sides, 2M+1L also 2L+1M turn RH
9-16
: 1L followed by partner casts down 1 place & crosses to 3rd place own
  sides, 3s+1s set facing on sides & 1s turn into double triangle
  position
17-24
: 1s dance Double Triangles & end with a petronella turn to end 1L
  between 2s & 1M between 3s facing down/up
25-32
: 1L+2s & 1M+3s Adv+Ret, 1s Petronella turn to 2nd place opposite sides &
  cross RH