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How to Observe Geology
Slight soiling
3 maps on the Niagara Quadrangle
The map shows the location of 111 borehole logs described in the text
Out of print and only available to view on line in 2024
Den Geologiske Undersogelse, Bergen, 16D One inch old series How to Observe GeologyDen Geologiske Undersogelse, Bergen, 16D, 1942 War Office reproduction of 1880. Scale 1: 100,000. Flat colour print, 43x61cm. Blank lines quarter the map area where the original map was cut and mounted on linen. Geological maps were copied by the British W. O. for all areas of potential warfare to assess terrain for trafficability and the location of water and useful resources. In very good condition.
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