1–
: 1c cast | cross up between 2c ; cast to 2plx (2c up) | set advancing to finish BtoB facing opposite sides
9–
: Inverted triangles (in PdB: set as in DTr | 2c+3c advance in and 1c out, all face R about ; set as inverted DTr | advance back, 1c to face 1cnr)
17–
: 1c turn 1cnr RH, pass P Rsh ; turn 2cnr LH | 1c pass RH
25–
: Reels3{6} across the dance, Rsh to 4cnr | 1c cross RH.

{{explanation}}
(on 2nd time through 1c cross to 4pl as 4c cast up).