Josiah Gregg's monumental map of Northern Texas & the Plains, which accompanied his Commerce Of The Prairies (Wagner-Camp 108), one of the Classic Accounts of the Transmississippi West and a cornerstone work for studies of the Santa Fe Trail. Wheat refers to the map as a cartographic landmark and is book as the most important work on the Southwest to date. Gregg was a Santa Fe Trade. Based upon Humboldt's map of New Spain, Long's 1st Expedition and JC Brown's survey's along the Santa Fe Trail, with corrections added by Gregg from observations. Shows nearly a dozen major routes of commerce and exploration during the period. Wheat devotes 2 pages to its description (Wheat 482).
Morse & Breese's North American Atlas was a landmark in American Cartography, being the first atlas to employ the cerographic printing process, which would revolutionize the map trade. The Morse family and this process are the subject of David Woodward's The All American Map. The maps were first printed in a series of inserts which appeared in the New York Post, and then later as a separate atlas.
An essential map for American Map collectors, illustrating an important change in the history of printed maps and the only truly American cartographic publishing innovation.