REMOVE

1. Atlas Map
2. World Atlas
3. Pennsylvania
4. 1860

WHAT

1. Canals (1)
2. Railroad (1)

WHERE

1. New Jersey (2)
2. Philadelphia (Pa.) (2)
3. Delaware (1)
4. Maryland (1)

WHO

1. Mitchell, Samuel Augustus (4)
2. Bibliographischen Institu … (2)
3. Meyer, Joseph, 1796-1856 (2)
4. Mitchell, Samuel Augustus … (2)
5. S.A. Mitchell, Jr. (2)

WHEN

1. 1845 (1)
2. 1859 (1)
3. 1864 (1)