"AEGRI SOMNIA" The following day 10th January, the Nautilus continued her course between two seas, but with such remarkable speed that I could not estimate it at less than thirty-five miles an hour.

The rapidity of her screw was such that I could neither follow nor count its revolutions.

When I reflected that this marvellous electric agent, after having afforded motion, heat, and light to the Nautilus, still protected her from outward attack, and transformed her into an ark of safety which no profane hand might touch without being thunderstricken, my admiration was unbounded, and from the structure it extended to the engineer who had called it into existence.
Our course was directed to the west, and on the 11th of January we doubled Cape Wessel, situation in 135 deg.long.and 10 deg.

S.lat., which forms the east point of the Gulf of Carpentaria.

The reefs were still numerous, but more equalised, and marked on the chart with extreme precision.