Passing through the canal, the river could be reached in a short while, and thence a course was open to the sea.
In the tank floated like a cork the beautiful triumph of a mighty inventive genius, the submarine boat.
It was truly a beautiful specimen of marine architecture, though totally unlike the general run of sea craft.
There were no sails or visible means of propulsion. No high decks or bulwarks, but a hull wonderful in its symmetry.
The Dolphin was built much upon the lines of the salt water bream, and was as buoyant and light as could be desired.
Stanhope stood upon the edge of the tank for some while regarding the new craft with interest and wonderment.
Then Frank advanced and said briskly:
“Well, George, what do you think of it?”
The explorer was silent a moment; then he said:
“It looks feasible from here.”