Scott, Dukinfield Henry, 1854-1934. Extinct plants and problems of evolution : founded on a course of public lectures delivered at the University college of Wales, Aberystw yth, in 1922 / by Dukinfield Henry Scott - London : Macmillan, 1924. - 240 p. : ill. ; 23 cm. Includes bibligraphical references ( p. 228-231) Subjects--Topical Terms: Paleobotany. Plants -- Evolution. Dewey Class. No.: 561 SCO