Map[Maps of the Washington Aqueduct, Md. and Washington D.C.] : to accompany supplemental report of Chief ... Relief shown by hachures on some maps. Title devised by cataloger. Orientation differs. Accompanied by Senate document: Supplemental report of the chief engineer of the Washington Aqueduct. 50 p. : ill. ;...
- Contributor: United States. Congress. Senate
- Date: 1864
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