A chart of the Gulf of St. Laurence, composed from a great number of actual surveys and other materials, regulated and connected by astronomical observations

Scale ca. 1:500,000.
Hand colored.
Relief shown pictorially. Soundings shown in fathoms.
"Pl. no: XI."
Three copies: Copy 1, boundaries outlined in yellow, green, brown, and blue. Copy 2, boundaries outlined in brown and blue. Copy 3, boundaries outlined in blue, yellow, and green.
From the author's The American atlas. 1775.
Includes listing of "Astronomical observations on which this chart is grounded."
LC Maps of North America, 1750-1789, 257
Available also through the Library of Congress Web site as a raster image.
Vault
AACR2