“Well, I should say so!” cried the explorer. “You are too kind to me, Frank. This will be the greatest treat of my life.”
“Now,” said Frank, “I will demonstrate to you that the Dolphin is a submarine boat.”
“That is all that is left to be done,” said Stanhope: “You have verified everything else.”
“When I have proved to you the ability of the boat to travel under water, then will you be satisfied?”
“Perfectly.”
Frank shouted to Barney, who was forward in the pilot-house.
“Barney!”
“Ay, sor!” replied the Celt.
“Press valve No. ten, and switch off lever No. six.”
“All roight, sor.”