This elegant house ls an especially fine example of the French Beaux-Arts style, a Parisian mode of design which reached Its zenith of popularity In this country at the turn of the century. The firm of W. & J. Sloane was founded In 1843 by Henry T. Sloane’s father. Under the management of the second generation of the family, the business continued to flourish, dealing exclusively in carpets,rugs, and upholstery material.