An exact chart of the River St. Laurence, from Fort Frontenac to the Island of Anticosti shewing the soundings, rocks, shoals &c
Printed map; west sheet. Fifth state. "This chart is most humbly inscribed by their Lordships most obedient most devoted humble servt. Thos. Jefferys". "25 May 1775." Visual scale [76 mm=10 "English & French marine leagues"]. Includes insets: The Seven Islands, lat. 50:8 -- A continuation of the river from Quebec to Lake Ontario taken from the original publish'd at Paris by Mr. D'Anville in 1755 [continuation southwest] -- St. Nicholas or English Harbor, lat. 49.32 -- The traverse or passage from Cape Torment into the South Channel of Orleans Island -- A view of the lands from Cape Torment to the Butt.... Includes text. Described in Kershaw, Early Printed Maps of Canada, Volume II, entry 669, p. 279: "Published in: A General Atlas Thomas Kitchin. 1780, 1782, 1787, 1793, 1794. And in: The American Atlas Sayer & Bennett. 1775, 1776 , 1777, 1778, 1783."