REMOVE

1. Exploration Book
2. Bering Sea
3. Russia
4. Chukchi Sea

WHAT

1. Agriculture (2)
2. Atlas Map (2)
3. Climate (1)
4. Population (1)
5. School Atlas (1)

WHERE

1. Australia (2)
2. New Guinea (1)
3. New Zealand (1)

WHO

1. Bartholomew, J. G. (1)
2. General Drafting Co., Inc … (1)
3. George Newnes, Limited (1)
4. McGraw-Hill Book Company (1)
5. Western Publishing Compan … (1)

WHEN

1. 1907 (1)
2. 1968 (1)