Galvanized Sheet Iron and Copper — Skylight Bars — Reinforcing Strips — Core Plate — Cap — Weight of Glass — tools — Shapes of Bars and Curbs — Raising Sash — single-pitch and double-pitch Skylights — Condensation Gutters — Hip Monitor Skylight — Ventilation — Photpgrapher's Skylight flat-extension Skylight — Hipped Skylight without Monitor — Skylights of Long Span Gearings — Development of Patterns for Hipped Skylight — Rules for Obtain ing' Length of Ventilator, Ridge, Hip, Jack, etc.