1-8
: 1s & 4s 1/2 turn RH times, lead into centre to dance 1/2 RH across &
  chase clockwise 1/2 way to end 1s between 2s & 4s between 3s
9-16
: 1M also 4L followed by partners dance an Alternating Tandem reels of 3
  across with 2s/3s & end between 2s/3s facing up/down
17-24
: 1s+4s set advancing towards each other & dance 1/2 RH across, lead out
  of ends & cast to 2nd/3rd place.  2 4 1 3