First published in 1969, "Lewis and Clark: Pioneering Naturalists" remains the most comprehensive account of the scientific studies carried out by Meriwether Lewis and William Clark during their overland expedition to the Pacific Northwest and back in 1804-6. Summaries of the animals, plants, topographical features, and Indian tribes encountered are included at the end of each chapter devoted to the particular leg of the journey. A distinguished biologist, Paul Russell Cutright will be remembered for this landmark contribution to our understanding of the world that the expedition observed and recorded. Paul Russell Cutright was a historian and a zoologist who wrote extensively on American natural history. Paul A. Johnsgard is Foundation Professor Emeritus of Biological Sciences at the University of Nebraska. His forty-two books include "The Nature of Nebraska: Ecology and Biodiversity" and "Crane Music: A Natural History of American Cranes", both available from the University of Nebraska Press.