X. THE TRIBE TO THE NORTH Page 125

The copper box taken to the ship. News from Uraso and Muro. Explaining mesmerism and hypnotism. Concentration. The effect on susceptible minds. The Korinos safe with the cannibal tribe. John advises Stut to sail, north for twenty miles, and await their coming. The march. The cinnamon tree. Cinnamon suet. Minerals. Sulphates. Copper ores. Omens. All peoples believe in signs and omens. The shelter for the night. How signals were made. Sighting the cannibal village. Earthenware cooking utensils. Meet the first natives. The dreaded Chief. A curious figure. The hunchback. A smile on his face. The American greeting. The surprise. A white man. Finding the Korinos. The welcome to his village. The Chief told about their ship. On the island fifty years. Telling John about the strange things which have floated ashore from wrecked ships. The Korinos assured of safety.

XI. THE HUNCHBACK CHIEF Page 138

The Chief's house. The relics from the sea. The hunchback Chief's story. His trip as a whaler. Ill treatment. Runs away. Ships to China. His rudimentary education. Shipwrecked on the return from China. Rescued by native cannibals. Regard him with veneration. Misinterprets their motives. In desperation. Asserts himself. Becomes Chief of the tribe. Stops cannibal practices. His great influence over the people. The Pioneer arrives. Ephraim Wilmar, the hunchback. His surprise at the many changes during fifty years. His amazement at the telephone, the cable lines, the phonograph.

XII. THE CHIEF'S FAMILY Page 148

Ephraim's wife. The family. The gifts to Ephraim's family. Delight at the cooking utensils. John tells Ephraim about the treasures on the islands. Hidden treasures. Learning the secrets of early humanity. Archeology. The trip to the cave. The long journey. The cave which had the entrances sealed by Ephraim. The peculiar kinds of masonry. Entering the cave. Dogs with the party. Mysterious death of the dogs. The alarm of the natives. Carbonic gas. Its nature, and how tested. Methods for removing it. The Humphrey Davy lamp. The principle on which it is made. Designed to indicate the presence of deadly gases. Explosive mixtures. How a primitive safety lamp was made. Reentering the cave. A large chamber. The cross-shaped cave. A parchment. The object of John's search.

XIII. THE CHART AND THE CAVES Page 164

The map accompanying the parchment. One of the Treasure caves. Remarkable carvings, and hieroglyphics. The quarrel of the buccaneers. The story of the Spaniard who wrote the chart. The expeditions searching for the treasure. Death of all who participated. Great archeological wealth. No material treasures found. How Ephraim's story affected the boys. John explains why the cannibals feared him. Due to their superstitions. Demented people regarded by some as saints. Genius and insanity. Further explorations of the island. The proposed trip to Wonder Island. Ephraim invited. He and his family accept. Telling Ephraim about Hutoton. The curious tales that were told them about the convict colony. The wonderful character of the people at Hutoton. The Pioneer sails. The first time on the deck of a vessel for fifty-two years. Ephraim and the library. His conversation with the head of the convict colony. The identity of the paralyzed man not established.

XIV. RESCUE ISLAND Page 175

The visitors at Hutoton received with rejoicing. John invites the leader to accompany them to Wonder Island. Retlaw, the captive, rescued, brought ashore. Caramo thought he recognized him. Sailing of the Pioneer for Wonder Island. Calling at the Malolo village. Ta Babeda agrees to accompany them to Wonder Island. Naming the island Rescue. The latitude and longitude noted. Introducing Ta Babeda to the cannibal Chief Ephraim. He explains how the Korinos misrepresented him and his people. The new world to Babeda when he stepped on board the Pioneer. The trip to Wonder Island. The mysteries on board the ship to the Chief. His inquisitive nature. How he characterized electricity. Ephraim's concern for his children. Approaching Enterprise River. The steamship Wonder in sight. The greeting. Going up the river. The excitement in Unity. The crowded dock. Sutoto and his bride. The flag on the Wonder. The curiosity of Beralsea at the sight of the Banners.

XV. THE RETURN TO WONDER ISLAND Page 187

Sutoto and the great wide world. Their trip to Valparaiso. Cinda, and the latest fashions. Blakely, the man of business. The boys tell him of the wonderful islands. His eagerness. He tells them of the great enterprises, and of the prospective new ship. The growth of Unity. The tribesmen coming in. Introducing Blakely to the Chiefs. They marvel at his energy. The Professor. John tells him about the copper box. The new hotel. The wonderful work in Unity. Agricultural pursuits. What they shipped to the north. The plans for surveying the islands. How the lands were apportioned. Building homes on the island. Energy of the natives. Emigration pouring in. Farm implements. Coffee tree planting. Raising cocoa. The schools. The Korinos as teachers. Explaining the trade problems to the Chief. Ephraim's desire to have his children remain and attend school. The Chief also permits his children to remain. Information that the paralyzed man is getting well. What paralysis is. The triangle. The visit of the boys to Sutoto's home. The new automobile. The surprise for the boys.

XVI. THE SAVAGES AT UNITY Page 199

Their new machines. Blakely's treat for the boys. The Professor's car. John in his runabout. The automobile procession. The Chief and the automobile. The cottage for the Chief's family. The boys and the Professor review their work. The great pleasure in their enterprises. George and Harry selected to manage affairs on Venture and Rescue Islands. The copper box. The skull in the package. The Professor announces the return of the reason of the paralytic. The word "triangle" announced by the paralytic. The remarkable coincidence. Opening the copper box. The triangle on the Walter letter. The skull within the copper box. The cryptic signs in the box. The counterpart of the skull they had found. The identical inscription. The agitation of the paralytic at the sight. He mentions the name of Walter. Retlaw enters and starts at the sight of the skulls. Tries to escape on seeing the paralytic. The latter announces his name as Clifford. Harry rightly judges that Retlaw is Walter reversed. Ephraim recognizes Clifford. Walter arrested.

XVII. UNRAVELING THE MYSTERIES Page 214

Speculations concerning Walter. Sutoto informed. The mystery of their missing boat. Clifford's story. The paper with the markings on the skull identified by Ta Babeda. The secret in possession of Walter. The boys' suggestion as to proper names for the natives. Surnames, and how originated. The method adopted by the Romans. The Greek names. English surnames. Clifford's condition improving. Trying to identify the skeleton found on Venture Island. Clifford recognizes Ephraim. Walter's letter. The three islands. The triangle. The three southern stars. The southern cross. The three crosses. Thirty leagues. The charts of the islands.

XVIII. THE STORY OF THE LETTERED SKULL Page 224

Clifford awakes. The escape of Walter and his recapture. Clifford continues his story. His effort to find the treasure island. His meeting with Walter. Capture by the savages. The Juan Ferde. Blakely and Clifford. His knowledge of the skull. The finding of the boys' boat. Sailing down the river. Loss of the boat. Finding his companions. Sailing to Venture Island. His illness. Meeting with Walter on Rescue Island. His belief that Walter had hidden the chart. Walter brought in. Clifford apologizes to Walter. The Sign of the Plus and V. The chambers in the cave. What the inscriptions meant. Surprise when Walter learns of the finding of the copper box. Explains the meaning of the charts. Why there were three skulls. The mysterious letter. The remarkable happenings explained.

LIST OF ILLUSTRATIONS

The scout from the rear now came in with a leap Frontispiece PAGE 'Stop!' cried John, 'It will be death for any one to touch him' 59 'It is copper,' said John 138 The old man pointed to the rocky wall 154

Fig. 1. The Marimba. 36 Fig. 2. The Atlantean Plateau. 42 Fig. 3. The Severed Hemispheres. 45 Fig. 4. Silencer: Convolute Blades. 54 Fig. 5. Spitting the Roast. 75 Fig. 6. Arialad Fruit. Sarsaparilla. 76 Fig. 7. The Mistletoe. 90 Fig. 8. The Jacchus. 95 Fig. 9. The Cave on Rescue Island. 119 Fig. 10. Cinnamon. 129 Fig. 11. Phonograph Disk. 146 Fig. 12. Types of Masonry. 154 Fig. 13. Types of Safety Lamps. 159 Fig. 14. How John made the Lamp. 160