Description: Patent for a new and improved ventilation system. This design consists in "an aperture having a size about ten inches by seven inches in area, a ventilating draft-flue having a diameter of about six inches by six and one-half inches and a height of about ten feet, and a receptacle having a diameter of about twenty-two inches, the said relative proportions being followed accordingly as the size of the privy, commode, or closet is increased or decreased" (lines 56-64).
Date: November 2, 1886
Creator: Bardon, Prosper
Partner: UNT Libraries Government Documents Department