Two related industries : an account of paper-making and of paper-makers' felts as manufactured at the Kenwood Mills, Rensselaer, New York, U.S.A., and Arnprior, Ontario, Canada, the two plants of F.C. Huyck & Sons, Albany, New York : prepared by direction of Perry Walton to mark the fiftieth year since the founder, Francis Conkling Huyck, entered the business and the twenty-fifth year since the plant at Rensselaer, New York, opposite Albany, was built, 1919