so," continued the Professor, "is, that the
pieces here are not part of a life-boat, such as our craft was, although
it was a part of a ship's boat. Where is the stern portion of our boat
that you found? Let us get that, and we will be in a better condition to
judge."

"We landed it beyond the point where Harry first reached the shore the
day we were wrecked."

"Let us get it at once."

In less than a half hour the broken portion of the boat was landed at
the foot of the cliff in front of Observation Hill.

Harry now had no doubt that the Professor's observation was correct.
"See, this has no double hull, which the life-boat has, and no part of
these pieces can be made to fit. Look at this stern. All of the stern
post is still on the boat below."

It was, undoubtedly, another boat; but there was no name or number on
any of the pieces by means of which it could be identified.

"I believe it was a part of the _Investigator's_ equipment," was the
Professor's final conclusion. "Have you recovered all the parts from the
debris?"

"I don't think we can find anything else. While Harry was away I hunted
all along the point in the hope that some more pieces might have been
found."

The most minute examination was made for some mark of identification,
but nothing was found which would give the least clue.

"Let us gather all these pieces and keep them for further observation,
particularly for the reason that other parts may be found eventually,
and identification will then be easier."

"Shouldn't we take the remnant of our life-boat to the Cataract?" asked
George.

"By all means. It has just occurred to me that we might use that as part
of the new boat we are building."

That was an idea which had not occurred to either of the boys.
Considering that the portion recovered was the stern, and by far the
largest part of the vessel, and that it had the double hull
construction, made the suggestion a most acceptable one.

After all parts of the wreckage had been assembled, the Professor,
accompanied by the boys, made another tour, much to the left, and on
returning to the boat, the Professor's eye caught a white object lying
partially hidden behind a rock.

"What is that by the rock to the right?" Without waiting for a further
suggestion from the Professor, Harry made his way up, and when the
object was reached, threw up his hands, without uttering a word. George
had followed, and before the Professor had time to rea