The configuration of the ocean-floor is of great interest to seismologists studying the movements of the Earth's crust. Oceanographers are also able to explain certain peculiarities of ocean currents by the contour of the ocean-bed. But enormous areas are still unexplored.

The key question companies need to address is not 'Should we make mistakes?' but rather 'Which mistakes should we make in order to test our deeply held assumptions?'

Aside from its importance to many branches of science, a knowledge of the oceans has a practical value for mankind. The intelligent development of our fishing industries, the laying of oceanic cables, the proper construction of harbor-works, oceanic commerce and navigation, as well as long-range weather forecasting, are all dependent on an understanding of the ocean.

Walking aft a few feet we stand at the steering gear of the ship. There is no cozy; wheel-house on the bridge for the quartermaster of a sailing ship! He must stand at the very stern, with an unobstructed view of the sails. When sailing "by the wind" his eye is glued to the weather-side of the uppermost sail; he keeps it drawing a trace of wind, but never lets it fill.

The configuration of the ocean-floor is of great interest to seismologists studying the movements of the Earth's crust. Oceanographers are also able to explain certain peculiarities of ocean currents by the contour of the ocean-bed. But enormous areas are still unexplored.

To indicate how large a part of the Earth is covered by the oceans, we might call attention to the fact that a whole hemisphere, with its center near New Zealand, would have only one-tenth of its area as dry land! And the average depth of the seas is over two miles.