Bagnold, Ralph A. 1896- The physics of blown sand and desert dunes, by R. A. Bagnold, with 16 plates and 84 diagrams in the text. - London, Methuen [1941] - xx, 265 p. illus., 16 pl., diagrs. 22 cm. ''References'' at end of most of the chapters. Subjects--Topical Terms: Ripple-marks.Sand dunes.Winds. LC Class. No.: QE597 / .B3 1941 Dewey Class. No.: 551.37