“All roight, sor.”

The Celt disappeared in the after-cabin. Very soon he came back with the suits.

There were two of them, and they were of an unusual pattern.

The usual diving-suit, as we all know, is operated by means of an air-pump and life-line, but these suits were the special invention of Frank Reade, Jr.

They consisted simply of a very heavy helmet, with connections with a square box-like case, which was strapped on the back.

This was the chemical generator, which furnished plenty of pure air for the diver for an indefinite period of time.

CHAPTER IX.
THE SUNKEN CITY.

The diving-suits were a very clever invention. They were superior to the old style for the fact that the diver had free use of his limbs and was hampered by no life-line or tube.

Frank gave instruction to Barney and Pomp to remain aboard the Diver and keep a good watch of the two divers all the while. Then he helped Wade to don his suit and put on his own.

They were now ready to leave the boat.