pairs. These waters are fairly well charted, but there is still a great deal to be learned about them. From time to time they have had earth quakes down here, and volcano eruptions, and the bottom is constantly shifting."
On the second night out from Nassau, Sam, for some reason, could not sleep. He tumbled and tossed in his berth for two hours, and then, feel ing that some fresh air might do him good, dressed in part and went on deck.
It was not a very clear night, and but few stars shone in the firmament. In the darkness the lad walked first to one side of the steam yacht and then to the other. Then he strolled toward trie bow, to have a little chat with the lookout.
As he walked along the side of the cabin he became aware of a figure leaning over the rail, gazing far down into the cea. By the man's general form he made the follow out to be Walt Wingate. The deck han< had hold of something, although what it was Sam could not tell.
At first the youngest Rover was going to call to the man and ask him what he was doing. But he remained silent, and stepped into the shadow of the cabin as Wingate left the rail and crossed to the other side of the yacht. From under some coils of rope the deck hand brought forth something, lifted it over the rail and dropped it gently
