REMOVE

1. Physical
2. Atlas Map
3. Mauritania
4. Niger

WHAT

1. Book Map (1)
2. Canals (1)
3. Guide Book (1)
4. Railroad (1)
5. Roads (1)

WHERE

1. Boston (1)
2. United States (1)

WHO

1. H. Tanner Jr. (1)
2. Tanner, Henry S. (1)

WHEN

1. 1842 (1)