This determines to a large extent the fineness of the yarn which can be spun.
The English cotton yarn and spun silk counts are reckoned upon the number of hanks of 840 yds.
The materials required are iron borings, sal-ammoniac and sulphur; these are mixed together, moistened with water, and rammed into the socket, which is previously half filled with yarn, well caulked.
Some spinners cover their yarn contracts merely by buying " futures," but the cover thus provided is frequently most inadequate owing to variations in the " points on or off" for the particular cotton that they want.
The spinner who persists in over-weighting his yarn finds it difficult to obtain "repeat" orders.