William E. Logan's 1845 Survey of the Upper Ottawa Valley

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Smith and Dyck have pinned the journal into the context of its times using a wealth of supporting information. These include background materials about the 1845 expedition, a description of the Geological Survey in the 1840s, and the field tools and methods in use at that time. The significance of Logan's 1845 fieldwork is discussed from various points of view including geology, topographical mapping, economic development, national museum development and the history of the upper Ottawa Valley. Appendices provide a biographical sketch of Logan and notes about the members of his field party; a discussion of the 1845 Geological Survey Act, which renewed the Survey's mandate, and Logan's take on it; an inventory of the minerals, fossils and water samples collected during the 1845 expedition; a catalogue, prepared by Logan in 1851, of the economic minerals and deposits to be found in the Ottawa Valley; a description of the Rochon micrometer telescope, which Logan introduced to Canada for topographical surveying; and correspondence relating to the expedition."--//journals.hil.unb.ca/index.php/GC/article/viewArticle/10242/10631.

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