1–4
: 1c+2c+3c half a mirror R3 on side  1c cross down to begin  
5–8
: 1c+2c turn 1–1/2, 1M RH, 1W LH, 1c face 1st cnr  
9–16
: 1c set to 1cnr | 1c cast Rsh round each other to 3cnr position while 1cnrs dance into centre, and swivel R to face own cnr position ; repeat, 1cnrs finishing in exchanged places, and 1c facing 2cnr  
17–24
: 1c repeat with 2nd cnrs 1c finish Rsh/Rsh facing opp side  
25–32
: 1c LHA on sides, 1W with 2W+3W, 1M with 2M+3M; 2nd cnr position leading (3W,2M) chase ccw to own side (M1,3,2  W3,2,1)  
33–40
: 6 bars of 3 couple bourell, all petronella to own sides  2,1,3