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He knew the means of fire-proofing buildings and the relation of insurance-rates to fire-proofing, but he did not know how many firemen there were in the city, how they were trained and paid, or how complete their apparatus.
The varnish and fire-proofing compound glistened brightly in the sunshine, attracting the attention of numerous seabirds, mostly gulls and ospreys, which followed them at times for short distances, only to be outdistanced. The engine was running at less than half its possible speed, and purring like a contented kitten after a meal of fresh milk.
"Nurse says that Tootles has forgotten the real Roxbury," she went on, after a moment. "See how cleverly you have played the part." Still he stared moodily, unconvinced, at the roadway ahead. They were driving in the Haupt Allee. "I hope I haven't got Roxbury into trouble by that interview I gave out concerning the new method of fire-proofing woodwork in office buildings and hotels.
Thus it would seem that this substance has been used for many purposes, but since its application does not seem to have been extended to any great degree, the defects here pointed out in its use as a fire-proofing material perhaps also exist, to a certain degree, in its other applications.
Although the manufacture of soluble glass does not strictly belong to the glass maker's art, yet it is an allied process to that of manufacturing glass. Of late soluble glass has been used with good effect as a preservative coating for stones, a fire-proofing solution for wood and textile fabrics.
Very thin gauze dipped in a solution of silicate of potash diluted with water, and dried, burns without flame, blackens, and carbonizes as if it were heated in a retort without contact of air. As a fire-proofing material it would be excellent were it not that the alkaline reaction of this glass very often changes the coloring matters of paintings and textile fabrics.
Then he lighted a Bunsen burner and thrust the paper into the flame. The paper did not burn! "A new system of fire-proofing," laughed Craig, enjoying my astonishment. He continued to hold the paper in the flame. Still it did not burn. "See?" he went on, withdrawing it, and starting to explain the properties of the new fire-proofer. He had scarcely begun, when he stopped in surprise.
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