The usual rate of travel did not average two and a half miles an hour, and while the first and second days were vigorous ones, they were not so much disposed to hurry up now, and were taking the trip more leisurely, thus giving more time to the examination of trees and plants and flowers, and to investigating the geological formation of the country. The new river was not, in all probability, more than seventy miles from the Cataract home.

Beyond, fully a day's march, was the mountain chain—not a high range, but an elevation which showed a broken skyline. The mountains below the South River did not now seem so formidable; and directly to the south they could see no ranges or hill elevations. To the north the sea might be ten or fifty miles away. The river flowed past them at the rate of about two miles an hour.

That evening, while sitting on the bank, Harry had an idea. "We made a mistake in calling our home river the West River. Let us call this the West, and rename our stream the Cataract River."

"Very well; as George does not object, the Geographical Society will please take notice, and make the change."

George was of the impression that to settle the question of the direction they should take in their future explorations, was the most important thing to determine.

An entire day was spent in and about the vicinity of the river. New plants and shrubbery of various kinds were constantly sought for and examined—they fished and hunted; and on the morning of the third day it was decided to move on.

"We have not yet sighted any original inhabitants, and have found no signs of people living here; nevertheless, we had traces of a fire thirty or forty miles east of here. That is what puzzles me."

"I am in favor of following this stream to the north," was Harry's conclusion, "unless we make a raft and cross the river."

Harry's view finally prevailed, and at noon of that day they camped at the mouth of a little stream which flowed into the West River. Beyond was a forest, and on the opposite side of the West River the wood had all along been dense. At that point the trees did not come down to the stream, and there was considerable lowland between the river and the forest.

The Professor and George wandered up the banks of the little stream on a prospecting tour, as had been their constant practice. When they returned Harry knew something unusual had occurred from the excited appearance of George.