This section is from the book "Progressive Lessons In The Art and Practice of Needlework", by Catherine F. Johnson. Also available from Amazon: Progressive Lessons In The Art And Practice Of Needlework.
When the cloth has been cut from this pattern, place the lower edges of the inner seam evenly together and baste from this point to the top; place the lower edges of the back seam evenly together and baste in the same way. Stitch the seam below the basting; turn, baste, and sew the hem. At the top of the upper part of the sleeve make two lines of running stitches, the first line 1/4 in., the second 1/2 in. below the top edge, with which to gather the fulness. Make a notch in the edge at the point B, and place this point I in. in front of the shoulder seam on the arm-size, and then arrange the fulness to the arm-size 4 in. in front of B and 2 in. back of B, being careful to keep the inner seam of the sleeve well under the arm. This pattern allows for one-half inch seams.
When a coat sleeve with a full top is desired for the sleeve of a dress, cut by this tier sleeve pattern; if it is too loose below the arm-size, curve the back seam to fit the arm.
In cutting sleeves, never double the cloth except in double width material, because the four pieces can be cut more economically from single cloth.
Pupils should learn to cut some of their patterns freehand.
The following description is for a blouse or shirt sleeve. The pupil watches the teacher, who cuts out the pattern from a doubled piece of paper, the folded edge of which is used as an inner seam. After the upper side of the sleeve is cut, the paper is unfolded, and the curve of the top is cut for the under side. The pattern is then tried on the arm and pared to fit exactly. The pupil now takes the pattern and traces it upon the blackboard. She then spreads the pattern upon her desk and compares it carefully with the one drawn on the blackboard. She then erases the drawing on the blackboard and draws on paper, freehand, a sleeve for the right arm, then a sleeve for the left arm. She then takes a piece of paper and cuts freehand this pattern of a sleeve.