The Voyages of Doctor Dolittle · Chapter
What Makes an Island Float explained
The Doctor and his companions explore the floating island of Popsipetel, discovering that it is drifting southward into colder waters, endangering all life on it.
What happens
The Doctor and his companions explore the floating island of Popsipetel, discovering that it is drifting southward into colder waters, endangering all life on it. With the help of porpoises, the Doctor enlists a herd of whales to push the island back toward the coast of Southern Brazil. The porpoises explain the island's origin as a hollow, air-filled chunk of South America that broke off during the glacial age. The plan succeeds, and the island begins moving north at a steady speed.
Themes in this chapter
Adventure and Exploration
The Doctor and his companions explore the interior and shores of the floating island, discovering its unique geology and the plight of its wildlife.
Communication with Animals
The Doctor converses with porpoises and whales, learning about the island's drift and enlisting their help to push it north.
Responsibility and Leadership
The Doctor takes charge of the crisis, devising a plan to save the island's inhabitants and coordinating the whales' efforts.
Characters to notice
- Doctor Dolittle
Discovers the island's southward drift, consults porpoises, and orchestrates the whale-pushing plan.
- Tommy Stubbins
Narrates the chapter, observes the Doctor's actions and the island's wildlife.
- Long Arrow
Accompanies the Doctor and Tommy on their exploration of the island.
- Bumpo Kahbooboo
Present during the explanation of the island's floating mechanism, remarks on its peculiarity.
Key passages
“Because this floating island we are on is drifting southward all the time in a current. It's an island that ordinarily belongs somewhere in the tropic zone—real sultry weather, sunstrokes and all that. If it doesn't stop going southward pretty soon everything on it is going to perish.”
The Doctor explains that the island is moving south into cold waters, and if it continues, all life on it will die.
Highlights the Doctor's concern for the island's ecosystem and his problem-solving role.
“It used to be a mountainous part of South America—an overhanging part—sort of an awkward corner, you might say. Way back in the glacial days, thousands of years ago, it broke off from the mainland; and by some curious accident the inside of it, which is hollow, got filled with air as it fell into the ocean.”
The porpoises explain that the island is a hollow chunk of South America that broke off long ago and floats because of an air pocket inside.
Provides the scientific (though fanciful) explanation for the island's buoyancy.
“The porpoises evidently succeeded in persuading the whales to do as the Doctor asked; for presently we saw them thrashing through the seas, going off towards the south end of the island.”
The porpoises convince the whales to help, and the whales swim to the island's southern end to push it.
Demonstrates the Doctor's ability to mobilize animal cooperation.