Summary: | Early Canadian nautical maps were referred to as "Bayfield charts" in honour of Henry Wolsey Bayfield who began in the early 1800s charting the waterways of Canada. "Price One & Sixpence." "Sold by J.D. Potter, Agent for the sale of the Admiralty Charts, 31 Poultry & 11 King St. Tower Hill." "Engraved by J. & C. Walker." "Published at the Admiralty, 1st August 1861 under the Superintendence of Captn. Washington, R.N.F.R.S. Hydrographer." Mounted on linen. Relief shown by hachures and spot heights; depths shown by soundings in fathoms. Mode of access: Internet. Copy in McGill Library’s Rare Books and Special Collections, Map Collection: Numbered 20 on verso of map. Index to Bayfield Charts at McGill University 20
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