1. Report accompanying plans for the improvement of the ventilation and heating of the Hall of Representatives Author(s): Leeds, Lewis W. Publication: [Philadelphia? : Rand, Perkins & Co.?, 1869?] Subject(s): Ventilation -- methodsHeating -- methods
2. A.S. Lyman's patent air purifier for ventilating beds, desks, and rooms of all sizes, with pure air Author(s): Lyman, Azel S. (Azel Storrs), 1815- Publication: [New York? : s.n., 1866?] Subject(s): Ventilation -- methodsAir Conditioning -- methods