Issue No. 21 (May 1955) of Master Weaver, a bulletin for handweavers published by Z-Handicrafts in Fulford, Quebec. It contains an essay arguing for the metric yarn count (meters per gram), with conversion formulas for cotton, linen, wool and silk, and an article on silk covering history, properties, reeling and throwing, and a table of silk counts. A practical guide to weaving fine silk follows, covering winding, warping, beaming, threading, reed choice, loom adjustment, weaving problems and boiling off the gum. The issue ends with a lesson on short drafts and profiles for unit weaves (Summer and Winter, Bronson lace, huck lace) and an advertisement for individual weaving lessons.