Lewis & Clark: Pioneering Naturalists

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 1804-06. 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. Paperback, 506 pages