"One of the most authoritative and comprehensive atlases of America" - Ristow
It compares well with the Pownall map in size and scope, from which many of its parts were developed. It also provides the definitive delineation of the thirteen colonies during the Revolutionary War era and extensive reconnaissance mapping of French Canada, including Newfoundland.
The present second edition, issued in 1776, includes "A New Map of the Province of Quebec," which represents a significant addition, in place of Jeffreys' "The Middle British Colonies," and a second issue of Samuel Holland's "The Provinces of New York and New Jersey," published on 20 December 1775.
Sayer & Bennett refers to the partnership of Robert Sayer (ca. 1724-1794) and John Bennett (fl. 1760-d.1787), which lasted between 1774 and 1783. Bennett had been Sayer’s apprentice. The pair specialized in American atlases, based on the work of Thomas Jefferys, who plates had been acquired by Sayer when Jefferys went bankrupt in 1766. They also began publishing navigational charts in the 1780s and quickly became the largest supplier of British charts in the trade. However, in 1783 Bennett lost control of his mental faculties and the partnership dissolved as a result. Sayer’s business was later passed to his employees, Robert Laurie and James Whittle.