[Page 41 printed on inside of back cover. Text on p. 2 of cover. Illustrations are colored.]
Notes:
[Page 41 printed on inside of back cover. Text on p. 2 of cover. Illustrations are colored.] † Distribution Made by Issuing Office. Director of Information, Tennessee Valley Authority, Knoxville, TN 37902.
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† Distribution Made by Issuing Office. Director of Information, Tennessee Valley Authority, Knoxville, TN 37902.