Observations on milling broad and narrow cloth, &c. [electronic resource] : shewing I. The many destructive errors that attend the common method of milling, and Reading or Tighting of Cloth, during its Milling. And, II. The many advantages that accrue, instead thereof, from the use of a new instrument, called a regulator. To which is annexed, A Certificate signed by several of the most eminent Clothiers in the Superfine Trade. By Richard Brooks, Clothier, Inventor of the said Regulator, and Patentee, at the Devizes, in the County of Wilts.