FOSSIL PLANTS 



A TEXT-BOOK FOE STUDENTS 

 OF BOTANY AND GEOLOGY 



BY 



A. 0. SEWAED 



M.A., r.R.S., Hon. Sc.D. Dubmn 



PROFESSOR OF BOTANY IN THE UNIVERSITY ; 

 MASTER OF DOWNING COLLEGE AND HONORARY 

 FELLOW OF EMMANUEL COLLEGE, CAMBRIDGE 



WITH 253 ILLUSTRATIONS 



VOLUME III 



PTERIDOSPERMEAE, CYCADOPILICES, CORDAITALES, 

 CYCADOPHYTA 



CAMBRIDGE : 



AT THE UNIVERSITY PRESS 



1917 



