s skylights on the ridge of a pitched of the two-ply and the three-ply roofing, two laye;rs of roof or nave. Ventilation is provided for through the larger percentage of gas making by the water gas tarred paper are caused to adhere by using melted windows placed a story above the flat aisle roof… … APPEOVED DESIGN FOR THE ILLINOIS STATE BUILDING AT THE WORLD'S FAIR. seven or eight years, and it will continue to use are already several establishments using pitch for There will be three entrances—the prominent one to increasing quantities of coal tar. It malies the cheap- making briquettes—the…
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