Author:
Ferdinand Rudolph Hassler (1770-1843), Swiss-born American surveyor, head of the United States Coast Survey and the Bureau of Weights and Measures [John Canfield Spencer (1788-1855), politician]
Publication details:
Washington City; 28 May 1843.
1p., 4to. Good, on lightly-aged paper. Hassler begins: 'The peculiar position in which I am, will plead my excuse for addressing you the enclosed papers, and the cold which I have, for not coming personally in the present bad weather, as I intended, and shall do soon as admissible.' He asks Spencer to visit 'this Office before Your ultimate decision upon the plan of Operation for the Coast Survey'.