Greatest
dryness of the atmosphere observed in Northern Asia, between the river
districts of the Irtysch and the Obi. Dew, a consequence of radiation.
Quantity of rain -- p. 335. Electricity of the atmosphere, and disturbance
of the electric tension. Geographical distribution of storms.
Predettermination of atmospheric changes. The most important climatic
disturbances can not be traced, at the place of observation, to any local
cause, but are rather the consequence of some occurrence by which the
equilibrium in the atmospheric currents has been destroyed at some
considerable distance -- p. 335-339.
i. Physical geography is not limited to elementary inorganic terrestrial
life, but, elevated to a higher point of view, it embraces the sphere of
organic life, and the numerous gradations of its typical development.
Animal and vegetable life. General diffusion of life in the sea and on the
land; microscopic vital forms discovered in the polar ice no less than in
the depths of the ocean within the tropics. Extension imparted to the
horizon of life by Ehrenberg's discoveries. Estimation of the mass (volume)
of animal and vegetable organisms -- p. 339-346. Geography of plants and
animals. Migrations of organisms in the ovum, or by means of organs capable
of spontaneous motion.
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