A chart of the Banks of Newfoundland / drawn from a great number of hydrographical surveys, chiefly from those of Chabert, Cook, and Fleurieu, connected and ascertained by astronomical observations.Chabert, Joseph Bernard, marquis de, 1724-180525th, March 1775.Depths shown by soundings.From Jefferys's The American atlas ... London : Printed and sold by R. Sayer and J. Bennett, 1776.Includes chart "Astronomical observations on which this chart is grounded."Prime meridian: LondonSheet measures 55.7 x 73.5 cm.cartographic