A booklet of cloth structure tables compiled by Thomas R. Ashenhurst, giving the minimum, optimum and maximum ends per inch for plain cloth in many combinations of warp and weft counts. Separate tables cover worsted, cotton or spun silk, and woolen yarns, and several mixed combinations. The text includes a preface and rules for changing pattern (twill and satin), finding picks per inch, changing cloth weight or yarn count, and calculating folded-yarn counts, average counts and yarn twist. A table of thread diameters for cotton, worsted and woolen yarns is also included.