Therefore he was able to vouch for its efficiency and practicability.
“I will take my chances,” he said, with a broad smile; “it will be no danger, I am very well assured.”
The professor was especially anxious to study phenomena of the deep sea, and also the topography of the Atlantic Valley.
All that was known of this mighty depression had been gained by deep sea soundings.
Certain specimens of its bottom had been brought up by the lead. Various forms of animal life unknown to science had thus been discovered.
But it was only guess work after all. Here, however, was a mighty opportunity to explore the ocean depths literally.
In his great machine shops at Readestown, Frank had constructed the Dart.
Every detail of its draughting and plans had been made by him in his secret model room.
The machinists had done the work under his directions. In this manner the famous Dart was built.
In shape it was not unlike the model of a pleasure yacht.