History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 3

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 4

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 1

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 3

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 1

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 3

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 2

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 4

History of the Expedition Under the Command of Lewis and Clark: To the Sources of the Missouri River, Thence Across the Rocky Mountains and Down the Columbia River to the Pacific Ocean, Performed During the Years 1804-5-6, by Order of the Government of the United States, Volume 1

The Expeditions of Zebulon Montgomery Pike To Headwaters of the Mississippi River Through Louisiana Territory, and in New Spain, During the Years 1805-6-7

The Daemon of Darwin

Field Ornithology: Comprising a Manual of Instruction for Procuring, Preparing and Preserving Birds, and a Check List of North American Birds

Biogen: A Speculation on the Origin and Nature of Life, Volumes 1-5

List of the Birds of Fort Whipple, Arizona: With which are Incorporated All Other Species Ascertained to Inhabit the Territory; with Brief Critical and Field Notes, Descriptions of New Species, Etc...

A Check List of North American Birds

Birds of the Colorado Valley: A Repository of Scientific and Popular Information Concerning North American Ornithology

Key to North American Birds: Containing a Concise Account of Every Species of Living and Fossil Bird at Present Known from the Continent North of the Mexican and United States Boundary, Inclusive of Greenland and Lower California, with which are Incorporated General Ornithology ... and Field Ornithology ; the Fifth Edition (entirely Revised) Exhibiting the Nomenclature of the American Ornithologists' Union, and Including Descriptions of Additional Species, Volume 2

Fur-bearing Animals: A Monograph of North American Mustelidae, in which an Account of the Wolverene, the Martens Or Sables, the Ermine, the Mink, and Various Other Kinds of Weasels, Several Spcies of Skunks, the Badger, the Land and Sea Otters, and Numerous Exotic Allies of These Animals, is Contributed to the History of Noth American Mammals

An Account of the Various Publications Relating to the Travels of Lewis and Clarke: With a Commentary on the Zoological Results of Their Expedition

Key to North American Birds: Containing a Concise Account of Every Species of Living and Fossil Bird at Present Known from the Continent North of the Mexican and United States Boundary, Inclusive of Greenland and Lower California, with which are Incorporated General Ornithology: an Outline of the Structure and Classification of Birds; and Field Ornithology, a Manual of Collecting, Preparing, and Preserving Birds