Lake Superior.

Oil wells are worked out beyond the edge of the Pacific Ocean.
You may see the oil derricks just off Santa Barbara's surf.

In the bay of San Francisco artesian wells, going through the
preliminary depths of salt water, bring the water of fresh
submarine springs to the surface.

But these little enterprises are but faint beginnings of the
great work that man has to do in exploiting the wealth beneath
the waters covering two-thirds of the earth's surface.

This earth will be quite a romantic abode when sub-oceanic
exploitation reaches full development, when the great gold mines
beneath the waters are indicated simply by latitude and
longitude.

Mars, with his huge canals distributing a planet's waters
scientifically, will be matched perhaps by our network of tunnels
under the water from here to Asia, and by our boring, with the
aid of cooling mediums, toward the earth's centre and bringing up
metals in a molten state.

Before he finishes with her, man will make old earth know that he
is at work "in her midst." He will make the harnessing of a tiny
Niagara or the boring of a poor little isthmus seem feeble
efforts.