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Publication Extents

Not all publications have extents, not all extents are completely accurate
The Foraminiferal Genus Orbitolina in North America
Raymond Charles Douglass
1960, Professional Paper 333
The foraminiferal genus Orbitolina has been useful as an index fossil in the Cretaceous rocks of the circumglobal equatorial belt for nearly a century. In Europe and the Near and Middle East enough work has been done on the species to allow their use for approximate correlations within the Cretaceous...
Flow resistance in sinuous or irregular channels
Luna Bergere Leopold, Ralph A. Bagnold, M. Gordon Wolman, Lucien M. Brush Jr.
1960, Professional Paper 282-D
The resistance to fully developed turbulent flow at constant depth in an open channel increases as the square of the mean velocity as long as the boundary conditions remain completely unchanged. The presence of the free water surface allows the possibility of departure from the relationship of resistance to the...
The trumpeter swan: its history, habits, and population in the U.S
Winston E. Banko
1960, North American Fauna 63
This report on the trumpeter evolved from studies made from 1948 to 1957 when I served first as an assistant and later as manager, of the Red Rock Lakes Refuge. I have also drawn extensively on the records of the National Park Service, the U. S. Fish and Wildlife Service,...