Note 41 — Chapter XV · THE GROWTH OF CIVILIZATION: OLD WORLD HISTORY AND ETHNOLOGY (continued 2)

It may be corroborative of this interpretation that totemism and exogamy are more irregularly distributed, and therefore more difficult to reconstruct as to their history, in South than in North America. The Tropical Forest area, in which these institutions occur in South America, has long been exposed to the influence of the higher civilization of the Andean region, much as Africa has been exposed to Europe and Asia.