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Chapter 3. The Principle of Exogamy and its Applications
Figures 1 and 2: Schemata drawn up by Bertin, who defines them in the following terms: The two schemata represent genealogical relations in different fashion. In both cases the information is the same, both for the individuals and their relationship.
Figure 1. In this schema (a traditional genealogical tree) the individuals are represented by points (of different shape according to sex, and black or white according to family) and the relationship by lines (of different design, according to the kind of relationship: filiation or alliance).
Figure 2. In this schema, less orthodox, certainly requires some effort of adaptation: the individuals are represented here by lines (different according to sex and family), their relationships by a point (representing by itself alliance and filiation). But the figure thus obtained brings out better the special relationships of cross-cousins here studied. This second system of representation has the added advantage of facilitating the recording of genealogical information that is infinitely more complex and ramified, and presenting it in easily read form (which the first type of representation does not permit).