climate[Pg 4] improved. It has been made habitable. The soil, which bore formerly only a coarse vegetation, is covered to-day with rich harvests. The rock-walls in the valleys are laid out in terraces and covered with vines. The wild plants, which yielded nought but acrid berries, or uneatable roots, have been transformed by generations of culture into succulent vegetables or trees covered with delicious fruits. Thousands of highways and railroad...