ctive, meaningful yardsticks. A culture is a means to an end: the security and continuity of life. Some kinds of culture are better means of making life secure than others. Agriculture is a better means of providing food than hunting and gathering. The productivity of human labour has been increased by machinery and by the utilization of the energy of nonhuman animals, water and wind power, and fossil fuels. Some cultures have more effective means of coping with disease than others, and this superiority is expressed mathematically in death rates. And there are many other ways in which meaningful differences can be measured and evaluations made. Thus, the proposition that cultures have ponderable values that can be measured meaningfully by objective yardsticks and arranged in a series of stages, higher and lower, is substantiated. But, it should be noted, this is not equivalent to saying that man is happier or that the dignity of the individual (an imponderable) is greater in an industrialized or agricultural sociocultural system than in one supported by human labour alone and sustained wholly by wild foods. Actually, however, there is no necessary conflict between the doctrine of cultural relativism and the thesis that cultures can be objectively graded in a scientific manner. It is one thing to reject the statement that monogamy is better than polygamy and quite another to deny that one kind of sociocultural system contains a better means of providing food or combating disease than another. Cultural adaptation and ChangeEcological or Environmental ChangeEvery sociocultural system exists in a natural habitat, and, of course, this environment exerts an influence upon the cultural system. The cultures of some Eskimo groups present remarkable instances of adaptation to environmental conditions: tailored fur clothing, snow goggles, boats and harpoons for hunting sea mammals, and, in some instances, hemispherical snow houses, or igloos. Some...
