Sketch F Showing the Progress of the Survey in Section No. VI (Lower Sheet) From Cape Florida to Tortugas Islands from 1845 to 1859.
1859 (dated) 20.5 x 34 in (52.07 x 86.36 cm)
A very attractive example of the 1859 U.S. Coast Survey triangulation chart or map of southern Florida and the Florida Keys. Covers from Key Biscayne Bay south along the Keys, past Key West, as far as the Marquesas Keys. Countless triangulation points are noted throughout. Names each of the Keys and identifies Miami at the northern edge of Key Biscayne Bay, and the city of Key West, at the time a prosperous center of commerce. The chart was produced in 1859 under the supervision of A. D. Bache, one of the most influential and prolific Superintendents of the U.S. Coast Survey.
The Office of the Coast Survey, founded in 1807 by President Thomas Jefferson and Secretary of Commerce Albert Gallatin, is the oldest scientific organization in the U.S. Federal Government. Jefferson created the "Survey of the Coast," as it was then called, in response to a need for accurate navigational charts of the new nation's coasts and harbors. The spirit of the Coast Survey was defined by its first two superintendents. The first superintendent of the Coast Survey was Swiss immigrant and West Point mathematics professor Ferdinand Hassler. Under the direction of Hassler, from 1816 to 1843, the ideological and scientific foundations for the Coast Survey were established. These included using the most advanced techniques and most sophisticated equipment as well as an unstinting attention to detail. Hassler devised a labor intensive triangulation system whereby the entire coast was divided into a series of enormous triangles. These were in turn subdivided into smaller triangulation units that were then individually surveyed. Employing this exacting technique on such a massive scale had never before been attempted. Consequently, Hassler and the Coast Survey under him developed a reputation for uncompromising dedication to the principles of accuracy and excellence. Unfortunately, despite being a masterful surveyor, Hassler was abrasive and politically unpopular, twice losing congressional funding for the Coast Survey. Nonetheless, Hassler led the Coast Survey until his death in 1843, at which time Alexander Dallas Bache, a great-grandson of Benjamin Franklin, took the helm. Bache was fully dedicated to the principles established by Hassler, but proved more politically astute and successfully lobbied Congress to liberally fund the endeavor. Under the leadership of A. D. Bache, the Coast Survey completed its most important work. Moreover, during his long tenure with the Coast Survey, from 1843 to 1865, Bache was a steadfast advocate of American science and navigation and in fact founded the American Academy of Sciences. Bache was succeeded by Benjamin Pierce who ran the Survey from 1867 to 1874. Pierce was in turn succeeded by Carlile Pollock Patterson who was Superintendent from 1874 to 1881. In 1878, under Patterson's superintendence, the U.S. Coast Survey was reorganized as the U.S. Coast and Geodetic Survey (C & GS) to accommodate topographic as well as nautical surveys. Today the Coast Survey is part of the National Oceanic and Atmospheric Administration or NOAA as the National Geodetic Survey.
Report of the Superintendent of the United States Coast Survey, (Washington D.C.) 1859.
Very good. Minor toning and wear and verso reinforcement on original fold lines. Printed on thin fragile paper. Else clean.