Scientific Inquiry

Where it surfaces

• The Start

  Roosevelt emphasizes the scientific value of the expedition, including collecting specimens for the American Museum of Natural History and studying the region's geography and wildlife.

• IV: The Headwaters of the Paraguay

  Cherrie and Miller's collection and study of mammals and birds, including opossums and the water-opossum, exemplifies the expedition's scientific focus.

• Up the River of Tapirs

  The chapter includes a paleontological discussion on the evolutionary history of tapirs and horses, and the collection of specimens for the American Museum of Natural History.

• VIII: The River of Doubt

  Surveying the river, collecting bird specimens, and documenting the landscape reflect the expedition's scientific mission.

• X: To the Amazon and Home; Zoological and Geographical Results of the Expedition

  The expedition collected over 2,500 birds, 500 mammals, and other specimens, many new to science, and mapped a 1,500-kilometer river.

• Appendix A: The Work of the Field Zoologist and Field Geographer in South America

  Roosevelt discusses the specialized, patient fieldwork required for zoology and geography in South America, using Haseman as an example of rigorous scientific investigation.

• Appendix B: The Outfit for Travelling in the South American Wilderness

  The careful planning of rations and equipment, including medical supplies and canoe repair kits, reflects a methodical approach to exploration.

• Endnotes

  The notes emphasize the importance of accurate geographic, biologic, and ethnographic knowledge, and praise explorers who work in the scientific spirit.