Gulf Stream No. 1 Showing the positions and comparison of observations of Temperature in the Gulf Stream in 1845,6,7,8 & '53

Temperature survey of the East Coast of the US, from Cape Cod to Cape Florida, delineating the water temperatures of the Gulf Stream. Measurement points include Block Island, Sandy Hook, Cape Henlopen, Cape Henry, Cape Hatteras, Cape Fear, Charleston, St. Simon's Bay, St. Augustine, Cape Canaveral, and Cape Florida. Survey stations are noted with the names of the surveyors and location data. Axis of the Gulf Stream is called out.

IMPORTANT NOTE:

All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi-permeable membrane, and drying blotter techniques. Most others you typically see on eBay have not been, and worse, are quickly and crudely unfolded for the low-quality photos you see. Unfolding these maps in that way is damaging and weakens them. Please be aware.