- The Scientific Papers of Sir George Darwin: Volume 2: Tidal Friction and CosmogonyDarwin, George Howard
eBook - The Scientific Papers of Sir George Darwin: Volume 1: Oceanic Tides and Lunar Disturbance of GravityDarwin, George Howard
eBook - Rough Notes Taken During Some Rapid Journeys Across the Pampas and Among the AndesHead, Francis Bond
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