In the printed version some sleeve numbers were missing, not wrong, just missing:
Sleeves (Knit Two Alike)
CO 50 (55, 58, 63, 66, 69) sts. Join, being careful not to twist. Pm for beg of rnd. Work in St st and in 4th rnd work dec as follows: k1, ssk, k to 2 sts before m, k2tog, k1. Repeat this dec every 4th rnd 4 more times; 40 (45, 48, 53, 56, 59) sts.