1- 8 1s turn RH and cast to 2nd place, turn 1½ LH to end between 2s facing opposite sides
9-16 1s+2s dance reel of 4 across and 1s pass RSh to face 1st corners
17-24 1s turn corner, partner, corner, partner to end between 3s facing opposite sides
25-32 1s+3s dance reel of 4 across and 1s end in middle between 3s and 4s
33-40 1s turn LH and cast up to 2nd place own side and turn RH
(MINICRIB, Dance Crib compiled by Charles Upton, Deeside Caledonian Society, and his successors)
This dance, The White And Purple Heather Jig (Cosh), is a variation on White Heather Jig also by James B. Cosh.
The only difference is in bars 35-36 where the 1s cast up to 2nd place on own sides (as the 3s step down) turning this dance from a 4x40 into an 8x40 jig.