Washington City. 1817. 20pp. Quarto. Quarto. Original plain blue wrappers, stitched as issued. Faint creasing to wrappers. Internally bright. Near fine. Item #WRCAM39364
This pamphlet contains various calculations, using coordinates from both England and the United States, to ascertain the longitude of the Capitol. Employing foundational work by the noted French astronomer, M. de La Lande, Lambert concludes his study, pronouncing: "It is...believed, that the foregoing result...be strictly correct...[and] a near approximation to the truth." At this point, the U.S. was considering starting a new system of longitude with Washington as the baseline. SABIN 38738. SHAW & SHOEMAKER 41224.