Tóm tắt

The journey into the forest. Restlessness of the yaks. The alarm. Wild animals. George Mayfield and Harry Crandall. Their companion, an aged Professor. Their history. How they were shipwrecked. Thrown on an island without weapons, tools, food, or any of the requirements of life. What they had accomplished previous to the opening of this chapter. Making tools. Capturing yaks and training them. The three previous expeditions, and what they discovered. The mysterious occurrences. The fourth voyage of discovery. Losing sight of the strange animals. The forest. Discovering orang-outans. Capturing a young orang. Christening the Baby. Its strange and restless actions. A shot. A wild animal. The wildcat. Enemy of the orang-outan. Distances deceptive, and why. Peculiar sensations at altitudes. Tableland. The fifth day. Discovery of a broad river. Progress barred. A mountain chain beyond the river. Adventures along the river. Decide to follow the river to the north. Camping at the shore of a small stream. Prospecting tour on the stream. The flint arrow. The arrow in the skull of an animal. Different kinds of arrows. Homesick. The light across the river. The test of firing a gun. Disappearance of the light. Seeking explanation. The night watch. The early breakfast and start. Scouting in advance. Qualifications in scouting. A coast line of steep hills. Shooting an animal. The answering shot. The wonderful echo. Calculating distance of the bluff by the sound. The bear. The attack of the bear. The Professor's shot. The frightened yaks. Recovery of the wagon. Death of the bear. Rugged traveling. Changing their course. Deciding to return to their home. Stormy weather. The traveling chart. Methods used to determine course intraveling. An adjustable square. Obtaining angles from the shadows.