Report of the Bureau of Mines, Volumen15

50 feet Animikie banded silica birch black spruce boiler boulder brick burned cent chains Clay Belt clay loam Cobalt compressor concession conglomerate Copper Corundum deposits depth diabase dike district down-draft kilns drift drill east Erie blue clay Erie clay feet deep feldspar furnace glauconite gold granite gravel graywacké greenstone half of lot hill hoist hornblende Huronian inches Iron formation iron range kilns lake Superior limestone Lower Huronian machine magnetite manufacture Mattagami river Mattagami valley mica Michipicoten river miles mill mineral Mining Company muskeg Niven's northeast northwest occurs Ontario outcrop output plagioclase plant poplar portage production pyrites quartz railway Red-top clay region rock sand sandy Saugeen clay schist scoved kilns shaft shales shore silica silver soil specimens spruce forest stoped sunk surface terraces tile timber tons Toronto township vein white spruce wood yard