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Clay Its Composition and Properties
Geological Description of Ontario Clays
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Baird auger machine Boulder clay Brick and Tile Brick Company brick plant buff burning capacity cent Clay Products coal colour cone Cooksville Corundum cream-burning clay deposits Dominion Natural Gas dry pan dry racks dry sheds dryer feet inside diameter feet long feet of red-burning feldspar fire box fire clay flue fluorspar Formation ft fuel glacial gravel Grey Grey county h.p. electric motor hand-loaded Hastings county hollow building-block kaolin Lambton county Lignite Lime and shale limestone Lorraine shale manufacture Medina N.Y. Lot Natural Gas Niagara Ontario Open flow open-top pug mill operation Ordovician Peel county pegmatite plastic Pyrometers Queenston Queenston shale Red Medina Red shale red-burning clay roof round down-draft kilns sand scove kiln screen season of five shale silica soft-mud machine stack steam stiff-mud brick surface clay temperature Terra Cotta Thickness tile plant Toronto Total depth Township tunnel ware waste-heat Wentworth county White Medina