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logan co

Geology of the Knoxville and Delaware quadrangles, Johnson and Logan Counties and vicinity, Arkansas

By E. A. Merewether

Two lynx-like cats from the Pliocene and Pleistocene

By C. Bertrand Schultz

Geology of the Scranton and New Blaine quadrangles, Logan and Johnson Counties, Arkansas

By Boyd Raymond Haley

Logan County surface water resources

By Richard A. Rogers

Stratigraphy and composition of the Sharon Springs Member of the Pierre Shale in western Kansas

By James R. Gill

Fossil Heloderma (Reptilia, Helodermatidae)

By Yatkola, Daniel A.

Logan Co West Virginia Marriages 1839-1892

By David Alan Murray,Nicholas Russell Murray

Logan County Colorado Marriage Index 1906-1938

By Patrick Vernon Murray,Dixie Owens Murray