. Canadian foundryman (1918). FLINT SILICA A washed, rewashedSteam-dried, screened,Manufactured product,Segregated from St. Peters Rock A FIND for any steel foundry. A necessity in electric steel the highest temperatures. Does not burn or fluvHas remarkable free-venting uniform purity and freedom from natural bonding material make it a KNOWN QUANTITY in every sand-mix roundness of granules gives a clean Silica contains nothing to form prases in the mold. S e n d for EnvelopeSample and Quotation United States Silica Company 1939 Peop

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. Canadian foundryman (1918). FLINT SILICA A washed, rewashedSteam-dried, screened,Manufactured product,Segregated from St. Peters Rock A FIND for any steel foundry. A necessity in electric steel the highest temperatures. Does not burn or fluvHas remarkable free-venting uniform purity and freedom from natural bonding material make it a KNOWN QUANTITY in every sand-mix roundness of granules gives a clean Silica contains nothing to form prases in the mold. S e n d for EnvelopeSample and Quotation United States Silica Company 1939 Peoples Gas Building Chicago Meet Us AtMilwaukee Our Exhibit willbe full of interestto every man con-cerned with sandblasting or steelmolding. WESTERN 1MTE1) STATES ADVERTISING SECTION. September, 1918. CANADIAN FOUNDRYMAN 13.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries