Introduction of seafloor spreading

Introduction 1. Extension and reception of paleomagnetic/paleoclimatic support for mobilism, 1960-6 2. Reception of the paleomagnetic case for mobilism by several notables, 1957-65 3. Seafloor spreading, the first version: Harry Hess develops seafloor spreading 4. Another version of seafloor spreading: Robert Dietz 5. The Pacific as seen from Scripps Institution of Oceanography: Menard's changing views about the origin and evolution of the ocean floor 6. Fixism and Earth expansion at Lamont Geological Observatory References Index.