Afghanistan, July-August 1969 – Page 22

adaptation into Y cohen note linguistic adaptation 'boid' viva' "a system of social classes (or castes) appears to be an important adaptation in societies that rely on advanced organization or industrialization." E.g. with . . When the population is for various reasons wholly mobile  ~ no class distinctions then disappear? "... man has a set of specialised tools of adaptation that are unparalleled by those of the farms: his culture." Superimposed on his genetically determined organ systems. "able to adapt himself to different habitats long before  genetic mechanisms as their for aim."