 This loss of amenities and elimination of the stimuli under which he evolved as a biological and mental being may have no obvious detrimental effect on his physical appearance or his ability to perform as part of the economic or technologic machine. But...  Soil Conservation - Página 941970Vista completa - Acerca de este libro
 | 1970 - 862 páginas
...appearance or his ability to perform as part of the economic or technologic machine. But the ultimate result can be and often is an impoverishment of life, a progressive...humanness and a weakening of physical and mental sanity. Air, water, soil, fire, the rhythms of nature and the variety of living things, are of interest not... | |
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