Argentina. Darwin, Charles (1862). ‘On the Thickness of the Pampean Formation, near Buenos Aires’, extract from the QJGS, v.19,
Argentina. Darwin, Charles (1862). ‘On the Thickness of the Pampean Formation, near Buenos Aires’, extract from the Quarterly Journal of the Geological Society of London, v.19, pp.68-71. Text age-toned, pages loose. In very good condition.