Chapter 2 Classes Of Geographic Influences

Physical effects.

Variation and natural conditions.

Stature and environment

Physical effects of dominant activities.

Effects of climate.

Acclimatization

Pigmentation and climate.

Pigmentation and altitude

Difficulty of Generalization

Psychical effects.

Indirect effect upon language

The great man in history.

Economic and social effects.

Size of the social group.

Effect upon movements of peoples.

River routes.

Segregation and accessibility.

Change of habitat.

Retrogression in new habitat.

The Boers of South Africa