AREAL • E-FREE TRANSLATION.COM • Definition of Areal

... evolution of all economic and social processes, reacting again favorably on density of population and resulting eventually in the greatly increased social group and enlarged territory of the modern civilized state. Hence we may lay down the rule that change in areal relations, both of the individual to his decreasing quota of land, and of the state to its increasing quota of the earth's surface is an important index of social and political evolution. Therefore the rise and decline not only of peoples but of whole civilizations ...

— Influences of Geographic Environment - On the Basis of Ratzel's System of Anthropo-Geography • Ellen Churchill Semple

... both formed and destroyed, leads, by an internal causal connection, to the distribution into solids and fluids, and to the peculiarities in the natural configuration of the earth's surface. Existing areal relations of the solid to the fluid differ considerably from those presented by the maps of the physical portion of a more ancient geography. Importance of the eruption of quartzose, porphyry with reference to the then existing configuration of continental ...

— COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 • Alexander von Humboldt