Daniels, Farrington, 1889- Direct use of the sun's energy / Farrington Daniels. - New Haven : Yale University Press, 1964. - xvii, 374 p. : ill., maps ; 21 cm. - Trends in science ; v.5. . Includes bibliographical references. Subjects--Topical Terms: Solar energy. Dewey Class. No.: 621.47 DAN