Second installment of an article on lighting textile mills, from the Textile Engineering section of Posselt's Textile Journal. It covers skylights (saw-tooth, north-facing, wired glass, Luxfer prism glass), interior finishes and the light reflected by different wall colors, paint choice, floors, and the arrangement of shafting and columns. It then turns to artificial lighting, arguing that electric lighting (enclosed arc and high-candle-power incandescent lamps) is preferable to gas in mills.