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Show Vcol Maile From Stones Possibility of Future Mamif.K'ltiro on n large scale o! rock wool from mineral ilopnsils In the Niagara peninsula of Ontario Is in (Heal o'd by a report Issued by (lie Canadian department of mines. This conclusion Is based upon successful experiments In the department's laboratories lab-oratories where rock wool of hiph Quality has been made from samples of rock obtained from tli deposits. Kool; wool Is a product which, up to the present, has not boon manufactured manu-factured In Canada. It is used bs nn Insulator for nil types of buildings build-ings and for numerous industrial purposes where it Is not subject to excessive vibration. Willi the development of a very long-fibered, flexible wool that does not break down under vibration such ns has been produced on an experimintal scale from Canadian raw material, Its field of service In blanket form may be extended to Insulation for ships nnd railway trains. A new and steadily widening widen-ing market for rock wool Is In the sound-proofinir and acoustical treatment treat-ment of auditoriums, offices, theaters the-aters and radio stations. Its fireproof fire-proof nnd vermin-proof nature makes it especially valuable for these purposes. |