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Image from page 430 of "Bell telephone magazine" (1922) | by Internet Archive Book Images
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Image from page 430 of "Bell telephone magazine" (1922)

Identifier: belltelephone6667mag00amerrich

Title: Bell telephone magazine

Year: 1922 (1920s)

Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept

Subjects: Telephone

Publisher: [New York, American Telephone and Telegraph Co., etc.]

Contributing Library: Prelinger Library

Digitizing Sponsor: Internet Archive

 

 

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s varied as the control of air pollution, the use ofpesticides, the development of highways, the con-trol of population growth, and the study of disease. Ecology is the study of the oii<os: the neigh-borhood, the dwelling place, the habitat. Spe-cifically it is the study of the interrelations betweenorganisms and their environment. By its very nature all ecology is complex, but hu-man ecology is especially complex, because of thecomplex nature of man. Not only must man adaptto the food he eats, the air he breathes, and thebacteria and pollens he encounters, but he must alsoadapt to his family, his community, his job, and tomany other facets of his society, the people in it, andthe rapidly changing technology he has created. It has been this rapid development of technologythat has led to the present growing concern abouthuman ecology: • As we have created new pesticides and have ap-plied them to our fields in order to obtain a greateryield of food crops, we have found that when we

 

Text Appearing After Image:

destroyed the pests, we destroyed other plants andanimals that we wish to have. Furthermore, some ofour chemicals have been eaten by fish or animals,which people in turn have consumed, and the chem-icals have found their way into human systems. • As we have developed electric dishwashers so wecould get the housewife out of the kitchen, we havefound that we needed new detergents to make themwork well. Unfortunately, some of these new deter-gents were immune to the bacterial action that de-stroys soap. They passed through our septic systemsand our sewage disposal plants. Soon we had sudsin our streams and foam in our drinking water. • As we have developed automobiles to get usaround more quickly, incinerators to burn our trash,and power plants to supply us with our ever-growingneeds for electricity, we have found that there is ahaze in the air over our cities, and on still days oureyes smart because of the smog that we have created. But these are only several of the simpler and more

 

 

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Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

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