REMOVE

1. North America
2. Mitchell, Samuel Augustus
3. S.A. Mitchell

WHAT

1. Atlas Map (4)
2. National Atlas (4)
3. World Atlas (3)
4. Covers (1)
5. Index Page (1)

WHERE

1. Central America (3)
2. United States (2)

WHO

1. Barralet. (1)
2. Burroughs, H.N. (1)
3. Gordon, T. (1)

WHEN

1. 1831 (4)
2. 1846 (1)
3. 1849 (1)
4. 1880 (1)