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How the Ozarks Came to Be America’s Oldest Mountains
American men and women of science
Claire Falkenstein papers, circa 1914-1997, bulk 1940-1990
Claire Falkenstein papers
MS 4807 Collections of the United States South Sea Surveying and Exploring Expedition 1838, 9, 40, 41 & 42. By T. R. Peale, U. S. Patent Office, 1846
Banffia constricta Walcott
Banffia constricta Walcott
Banffia constricta Walcott
Banffia constricta Walcott
Banffia constricta Walcott
Banffia constricta Walcott
Mackenzia costalis Walcott, 1911
Mackenzia costalis Walcott, 1911
Mackenzia costalis Walcott, 1911
Mackenzia costalis Walcott, 1911
Mackenzia costalis Walcott, 1911
Mackenzia costalis Walcott, 1911