The time may come when there will be no portion of the earth's surface that has not been surveyed and explored by man.


The Fauna of the Deep Sea, Preface (p. vii)


The time may come when there will be no portion of the earth's surface that has not been surveyed and explored by man.

The time may come when there will be no portion of the earth's surface that has not been surveyed and explored by man.

The time may come when there will be no portion of the earth's surface that has not been surveyed and explored by man.

The time may come when there will be no portion of the earth's surface that has not been surveyed and explored by man.