This volume is more reportorial than scholarly. It is the product of an effort to collect and relate to one another the important facts about adult education by radio, past and present. I have had a limited time for this effort. Therefore I have attempted no research (although seeking to take account of that done by others), and have confined myself to reading, observing, interviewing, and listening to broadcasts. In the course of these activities I have spent several months in visiting radio stations in various parts of the country, from New York to Los Angeles, and have heard many hundreds of their programs. I have talked both with station and network officials, and with a large number of engineers, educators, and representatives of educational groups.
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