Sew on same tapes as for a regularly sewed book.
In overcasting or whipstitching do not take up more than one-eighth of an inch for the deepest stitches. Make the signatures small and pass the needle through two of them with each stitch, taking the stitch diagonally.
Paste the lining papers to the waste sheets, all over, front and back. Paste ends of tapes on top of lining papers. Trim the book, cutting it as little as possible.
Glue the back slightly, and, when it is partly dried, round the book and then back it. In backing do not break the threads or pull them through the paper. This is especially to be guarded against on whipstitched books.
After rounding and backing, glue to the back and over onto the sides, passing beyond the jaconet guards, a strip of medium weight, soft, bleached muslin.
Measure and cut the boards, which should be of good quality, adapted to the wear the book is likely to have.
Cut the leather back, of pigskin. Do not pare it save slightly at the edges. Put a little paste on the boards to make them stay in place, and set them in place on the book.
Put on the leather, leaving the boards in place, tucking the leather in at top and bottom,—head and tail.
When the leather is partly dried, the book having been kept under slight pressure, cover the boards with keratol or appropriate cloth. Make the corner fold by first turning the cover material in straight across the corner and then bringing in the folds from right and left.
Paste the end sheets firmly down on the inside of the covers. This fastens the book securely into its case. Press until thoroughly dry.