As to the mean depth of this part of the Pacific, I tell you it is only 4,000 yards." Having said this, Captain Nemo went towards the panel, and disappeared down the ladder.

I followed him, and went into the large drawing-room.
The screw was immediately put in motion, and the log gave twenty miles an hour.
During the days and weeks that passed, Captain Nemo was very sparing of his visits.

I seldom saw him.

The lieutenant pricked the ship's course regularly on the chart, so I could always tell exactly the route of the Nautilus.
Nearly every day, for some time, the panels of the drawing-room were opened, and we were never tired of penetrating the mysteries of the submarine world.
The general direction of the Nautilus was south-east, and it kept between 100 and 150 yards of depth.

One day, however, I do not know why, being drawn diagonally by means of the inclined planes, it touched the bed of the sea.