This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Ell. A long measure, chiefly used for cloth, of different lengths in different countries. The English ell, not yet obsolete, is a yard and a quarter, or 45 inches. Ell is identical in meaning and origin with the word aune, which is also a cloth measure for one and quarter yards. Both of these words are derived from alna, elbow or fore-arm.