Translatory motion of the solar system, 145-150.
Trogus, Pompeius, on the supposed necessity that volcanoes were dependent on
their vicinity to the sea for their continuance, 243, 244; views of the
ancients on spontaneous generation, 346.
Tropical latitudes, their advantages for the contemplation of nature, 33;
powerful impressions from their organic richness and fertility, 34;
facilities they present for a knowledge of the laws of nature 35;
transparency of the atmosphere, 114; phosphorescence of the sea, 202.
Tschudi, Dr., extract from his "Travels in Peru." See Translator's note,
215, 216, 217.
Turner, note on Sir Isaac Newton, 132.
Universality of animated life, 342, 343.
Valz on the comet of 1618, 106.
Varenius, Bernhard, his excellent general and comparative Geography, 66, 67;
edited by Newton, 66.
Vegetable world, as viewed with microscopic powers of vision, 341; its
predominance over animal life, 343.
Vegetation, its varied distribution on the earth's surface, 29-31, 62;
richness and fertility in the tropics, 33-35; zones of vegetation on the
declivities of mountains, 29-32, 346-350. See Aetna, Cordilleras,
Himalayas, Mountains.
Vico, satellites of Saturn, 96.
Vigne, measurement of Ladak, 322.
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