1–
: 1c lead down the middle and up to top, facing up in the middle
9–
: 1c cast off (2c up), cross LSh and dance RSh round 1cnr | turn P LH to face 1cnr
17–
: 1c+1cnrs Corner Chain, finish facing 2cnr
25–
: 1c+2cnrs Corner Chain, finish (2,1,3)

{{explanation}}
Corner Chain: 1c turn cnr RH ½ | cnrs turn LH ; 1c turn same cnr RH ½ | 1c turn LH to enter next figure