Book 3 — Proper Way to Wrap Papers for Mailing
Reading edition
The Clipped Corners Prevent the Adhesive from Coming in Contact with the Paper inclosed
In using a homemade paper wrapper for mailing purposes cut a triangular section from each end of it before applying the paste or mucilage. This prevents the adhesive from oozing out at the edges and sticking to the paper it incloses. This also permits the easy withdrawal of the paper.