Transactions . i;,/...:.\.\.\ illustrate Mr (Vi/i/-/<-s Parkms paper on the Treatment of Ores The Pneumatic Stamp. Front I %•&. ? ? r->/...\y/.To /////.v/zv/// . /// (y///// ?//?s/W/Av/u- papa • on ///< i //•< vztment o, O? •&?* The Pneumatic Stamp.

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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries