On 2nd chord, 3c+4c cross to opposite side (1,2,3x,4x)
1-8
1c+2c & 3c+4c ½ DblFig8, 1c(4c) crossing dn(up) to start (to 1x,2x,3,4) ; 1c & 4c turn P RH 1½ while{4} 2c+3c facing dn/up change places RH 1½ (1,3,2x,4x)
9-16
1c+3c & 2c+4c ½ DblFig8, 1c(4c) crossing dn(up) to start (to 1x,3x,2,4) ; 1c & 4c turn P LH 1½ while{4} 3c+2c facing dn/up changes places LH 1½ (1,2,3x,4x)
17-24
4C Gr-Chain, end cpls crossing (omit polite turn) (1,2,3x,4x)
25-32
All turn P RH ½, stay in centre RHJ | 1c+2c & 3c+4c ½ RHA (to 2,1,4x,3x) ; 2c+1c & 4c+3c ½ LHA (to 1x,2x,3,4) | dropping H, all follow P 2 places cclw (to 2M,1M,1W,3W on M side, 2W,4W,4M,3W on W side)
33-40
1c+4c set | Petronella in tandem (to 2,4x,1,3x) ; 1c & 4c S&Link across (2,4,1x,3x)