Aspects of Nature in the African Sahara

-Aspects of Nature in the African Sahara- "With all the wild, fitful, and forbidding Nature that belongs to the Sahara, it has also its elements of peace and good will. The cheer of a green oasis is, indeed, one of its first greetings, and long before the great flat expanse of sand is reached the traveler approaching from the north looks down upon an island of emerald verdure."