The tropical world : a popular scientific account of the natural history of the animal and vegetable kingdoms in the equatorial regions / by Dr. G. Hartwig.

  • Georg Hartwig
Date:
1863
Catalogue details

Licence: Public Domain Mark

Credit: The tropical world : a popular scientific account of the natural history of the animal and vegetable kingdoms in the equatorial regions / by Dr. G. Hartwig. Source: Wellcome Collection.

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    Tropical Tornado CHAPTER I. THE DIVERSITY OF CLIMATES WITHIN THE TROPICS. Causes by which it is produced — Abundance and Distribution of Rain within the Tropics — The Trade Winds — The Belt of Calms — Tropical Rains — The Monsoons — Tornados — Cyclones — Typhoons — Storms in the Pacific — Devastations caused by Hurricanes on Pitcairn Island and Rarotonga. N surveying the various regions of the torrid zone, we find that Nature has made many wonderful provisions to miti- gate the heat of the vertical sun, to endow the equatorial lands with an amazing variety of climate, and to extend the benefit of the warmth generated within the tropics to countries situated far beyond their bounds. Thus, while the greater part of the northern temperate zone is occupied by land, the floods of ocean roll over by far the greater portion of the equatorial regions, — for both torrid America and Africa appear as mere islands in a vast expanse of sea. The conversion of water, by evaporation, into a gaseous form is accompanied by the abstraction of heat from surrounding bodies, or, in popular language, by the production of cold; and thus over the surface of the ocean the rays of the sun have a tendency to check their own warming influence, and to impart
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