Zone

Definition and stakes

Portrait of Frederick Albion Ober Frederick Albion Ober,  Travels in Mexico and life among the Mexicans (1884)

“ In no country in the world can you pass so rapidly from zone to zone,—from the blazing shores of the heated tropics to the region of perpetual winter, from the land of the palm and vine to that of the pine and lichen,—for in twenty hours this can be accomplished, and the traveller may ascend a snow peak with the sands of the shore still upon his shoes. ”
Source: Wikisource

Portrait of Ellen Churchill Semple Ellen Churchill Semple,  Influences of Geographic Environment

“ The boundary zone in nature.
Nature abhors fixed boundary lines and sudden transitions; all her forces combine against them. Everywhere she keeps her borders melting, wavering, advancing, retreating. If by some cataclysm sharp lines of demarcation are drawn, she straightway begins to blur them by creating intermediate forms, and thus establishes the boundary zone which characterizes the inanimate and animate world.
”
Source: Gutenberg

Portrait of John Ruskin John Ruskin,  The Bible of Amiens (1884)

“ You have thus, easily and clearly memorable, twelve countries, distinct evermore by natural laws, and forming three zones from north to south, all healthily habitable—but the races of the northern-most, disciplined in endurance of cold; those of the central zone, perfected by the enjoyable suns alike of summer and winter; those of the southern zone, trained to endurance of heat. ”
Source: Wikisource

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