ABSTRACT
Fifty per cent of the surface of the globe lies between latitudes 30°N and 30°S, and over 75 per cent of the world's population inhabits climatically tropical lands. Tropical climates are, therefore, of especial geographical interest.
Fifty per cent of the surface of the globe lies between latitudes 30°N and 30°S, and over 75 per cent of the world's population inhabits climatically tropical lands. Tropical climates are, therefore, of especial geographical interest.