MapMap of a reconnoissance [sic] of the approaches to Philadelphia showing the positions and lines of defence on the west front of the city Topographic map of western Philadelphia and small adjacent parts of Montgomery and Delaware counties showing 1st- and 2nd-order Civil War earthworks and batteries. Relief shown by contours, hachures, and spot heights. Pen-and-ink, red ink (contours), and watercolors. Former ownership rubber-stamping to left of title: U.S.C. & G. Survey, Library and Archives, no. 1. "Acc. no. 54399" and "854 ST 1863" (former Coast Survey numbers)...
- Contributor: United States Coast Survey - Bache, A. D. (Alexander Dallas) - Whiting, Henry L.
- Date: 1863
MapMap of supplementary reconnaissance of the approaches to Philadelphia by the West-Chester Road : including the section from Newtown Square to the east branch of the Brandywine Creek Topographic map showing Civil War earthworks and batteries. Relief shown by contours and spot heights. Authorship statement citing Whiting's name is in handwriting (black ink). Pen-and-ink, red ink (contours), and watercolors. "No. 2863X" and "854W" (former Coast Survey numbers) are handwritten in ink on sheet and on adhesive label at lower right. Imperfect: Fold-lined. Originally drawn on 3 sheets. Includes notes. LC Civil War...
- Contributor: Whiting, Henry L. - Bache, A. D. (Alexander Dallas) - United States Coast Survey
- Date: 1863