Biogeographical Realms system is dividing the Earth's surface into eight ecozones. The Udvardy system also classifies the world into ecosystem types, which he calls biomes.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... set against the background of Russian society of that time. Its theme is the institution of marriage and its relation to society and morality.
The novel intially ...