Lines of equal magnetic horizontal intensity in western Canada for 1917
Date1917
Names
Canada. Department of the Interior
(author)
Canada. Surveys and Mapping Branch
(contributor)
Cory, William Wallace
(contributor)
Lougheed, James A. (James Alexander), 1854-1925
(contributor)
Format
Medium
DimensionsScale 100 miles to one inch; 33 x 45 cm
Language
CollectionBaldwin Collection of Canadiana
Usage Rights
Public Domain
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Call Number / Accession Number538-7-C12-3-SMALL
Dewey Number538.7 C12.3 SMALL
Approximately 1870
Approximately 1870
Approximately 1870