Cast on 100 st.
Knit 20 rows of ribbing, 1 plain and 1 purl alternately.
Now commence working a plain and a purl row alternately, knitting plain the first 4 st and the last 4 st of both the plain and the purl rows. These plain stitches prevent the edges of the work from curling up, and give a flat under-arm seam.
Work 60 rows in this way, increasing 1 st in the 6th st from each end of every 15th row. Continue for 5 more rows, which will bring you to the armhole.
86th Row.—Cast off 12 st, p to 4 st from the end of the row, k 4.
87th Row.—Cast off 12 st, k to the end of the row.
Cast off 1 st at the commencement of each of the next 4 rows. This should leave you with 80 st on the needle.
Now work 49 rows, a plain and a purl row alternately, slipping the 1st st of every row. In these rows purl the return rows right across, omitting the four plain st at each end.