The American system of consanguinity, which appears purely nonsensical in any form of family based on any variety of monogamy, finds, down to the smallest details, its rational explanation and its natural foundation in the punaluan family.

• 美洲的亲属制度，在以某种个体婚制为基础的任何家庭形式下，看来都是极其荒诞的事情，现在它在普那路亚家庭中，连最细微的地方，都获得了合理的解释和自然的根据。