synthetics which are being developed for popular use. Going beyond 

 the surface level of mere substitutes, the story takes us via fascinat- 

 ing and detailed sequences into a world of the atoms and molecules 

 that make such substitutes possible. 



This is probably one of the most outstanding films produced 

 within the last eight years. A highly imaginative and expensive 

 production together with special effects and lighting, it could hold 

 its own artistically with any 35mm production. An amazing ex- 

 ample of the efficacy of the proper selection of producer, director 

 and cameramen as well as writers. A fine descriptive musical score 

 specially composed by Benjamin Frankel is particularly noteworthy. 



AUDIENCE: Junior high; senior high; college; adult 



ECOLOGY 



BETWEEN THE TIDES 



Color Sound Contemporary Films 



22 minutes Rental Sale 



A new environment, this time the rich natural life of Britain's 

 coastal areas and its inhabitants, brings us effective pictorial in- 

 formation about an everchanging community. Again the predator's 

 story, of hungry gulls descending on beach creatures as well as the 

 struggle for survival continually waged on the ocean floor, is filmed 

 with considerable dramatic effect. The film serves also as an intro- 

 duction to the fascinating creatures found in rock pools and shallow 

 waters of this particular environment, as well as pictorializing the 

 breeding grounds of Britain's sea birds. An excellent film to use as 

 an introduction to a new ecological community that of the littoral 

 waters of any country. 



AUDIENCE: Junior high; senior high; college; adult 



THE COMMUNITY 



Color Sound Encyclopaedia Britannica Films 



11 minutes Rental Sale 



This film introduces the basic vocabulary of ecology primary 

 food producer, primary carnivore, pyramid of numbers, niche, food 

 chains, etc. The application of these terms to actual relationships 

 in nature is illustrated in grassland, western pine forest, and inter- 



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