REMOVE

1. Martha's Vineyard
2. Fabatz, Anton B.

WHAT

1. Geomagnetism (2)
2. Physical Atlas (2)
3. Text Page (2)

WHERE

1. World (2)

WHO

1. Johnston, Alexander Keith … (2)
2. Sabine, Edward, Sir, 1788 … (2)
3. William Blackwood & Sons (2)

WHEN

1. 1856 (2)