This is a separate issue 1877 U.S. Coast Survey nautical chart or maritime map of the entrance to the Potomac River on Chesapeake Bay. The map depicts the region from Piney Point to the Chesapeake Bay and from Point No Point on Chesapeake Bay to Fleet Point and Cockrell Creek. Highly detailed, myriad depth soundings, measured in fathoms, are present throughout. The coastline is illustrated in detail as well, with depth soundings indicated in the Yeocomico River, the Coan River, Smith's Creek, St. Mary's River, and St. George's River. Hull's Creek, Cubitt's Creek, the Little Wicomico River, and Judith's Sound are among other coastal features that are illustrated but do not contain depth soundings. Four lighthouses are labeled throughout the region, and a table offering general information about each lighthouse is situated along the bottom border. Information concerning soundings, sailing directions, and tides are also included along the bottom border.
This map was originally published under A.D. Bache, one of the most influential and prolific figures in the early history of the U.S. Coast Survey, in 1868. This edition was issued in 1877 by Carlile Pollock Patterson, the Superintendent of the United States Coast Survey from 1874 until 1881.
The Office of the Coast Survey (1807 - present) 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.
Carlile Pollock Patterson (August 24, 1816 - August 15, 1881) was the fourth superintendent of the United States Coast Survey. Born in Shieldsboro (now Bay St. Louis), Mississippi and the son of the American naval officer Daniel Todd Patterson (1786 - 1839), Carlile joined the navy as a midshipman in 1830. He graduated from Georgetown College in Kentucky as a civil engineer in 1838 and was attached to the U.S. Coast Survey from 1838 - 1841. In 1841, he was commissioned as a lieutenant. As commander of the Coast Survey schooner Phoenix, Patterson led the first USCS hydrographic expedition of the Gulf of Mexico in 1845. Patterson resigned from the Navy in 1853. At the outbreak of the Civil War in 1861, Patterson returned to federal service as a civilian hydrographic inspector in the Coast Survey, in charge of the charting and survey work. He was appointed as the Superintendent of the U.S. Coast and Geodetic Survey in 1874, a post he held until his death.
Very good. Even overall toning. Closed tear extending one inch into printed area from top margin professionally repaired on verso. Close margins on right side and bottom. Blank on verso.