The first cabin was richly furnished; the second cabin contained half a dozen fine staterooms.

Beyond was the dining cabin, and then one came to the cook’s galley.

Below decks, however, was the region of wonder and mystery.

Here was all the wonderful and secret electrical machinery.

Also the mighty automatic reservoirs by which the Dart was made to sink or rise at the will of the inventor.

Forward was the chemical room, where in tanks was stored the compressed air, and also manufactured the same, with which the travelers were enabled to live beneath the surface of the ocean.

Tubes went to every part of the cabin with this chemical product, and there was also an apparatus for consuming the vitiated air or gases.

So that the air supply was always of the purest and best.

Truly, the submarine Dart was a wonderful product of the inventor’s skill and ingenuity.

Few, however, could appreciate it more fully than Prof. Von Bulow, who was fairly captivated with it.