Errata:

For the sleeves, to make sure that the buttons are on the outside of the wrist rather than the inside of the wrist, a small change in the instructions that originally read (I put the changed lines in italics):

Next row (WS) Purl and dec 5(4,4,4,4) sts evenly -- 53 (54, 58, 62, 66) sts rem. PM and join in the rnd….

…

Divide for sleeve cap: (RS) BO 5 (6,8,8,8) sts, k66 (70,72,78,86), turn.

Should be changed to:

Next row (WS) Purl and dec 5 (4,4,4,4) sts evenly -- 53 (54, 58, 62, 66) sts rem. Next row (RS) K26 (27,29,31,33), pm for center of sleeve, k to end. PM and join in the rnd…

…

Divide for sleeve cap: Work to center of sleeve marker, BO 5 (6,8,8,8) sts, k66 (70,72,78,86) turn.

Thanks to Anisa for bringing my attention to this!