Note that both times the couple moving UP makes the arch.
Square set plus 5M / 5W in middle face P with backs to 4c / 2c
In 17-32, the corners traditionally set one bar to the person you just passed, then one bar to the next person to pass. In a variant for [19-24] 1c turns BH in PdB.
The set is now inverted ; repeat using the bottom (3c) as new top. In 6 times through each couple dances once as 1c from »each hemisphere«.
Note: On , some dancing couples choose to face in after the RH turn and then cast into the next figure.
Note: This crib follows the current way of dancing. In the original instructions, the promenade [25-32] is cclw. Bill Hamilton said in 'hindsight' this promenade should be clw, but preferred not to change the official instructions. Bill disapproved of another variant, where the circle [121-128] is continued to the R only.