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Excerpt from Geological Survey of Canada: Report of Progress, for 1871-72He measured in all about eighty miles of roads, rivers, streams and lines through the woods, and registered the strike, dip and mineral character of every rock exposure met with. Eight miles of the distance mentioned were measured by theodolite and chain, and the remainder by prismatic compass and

Title : Geological Survey of Canada: Report of Progress, for 1871-72 (Classic Reprint)
Author : Alfred R C Selwyn
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 07, 2021

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