Scott,  <br/><br/>
Devonian Floras  a Study of the Origin of Cormophyta 

 - Cambridge  Cambridge University Press  1921 
 - 100 
<br/><br/> Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleobotany
<br/><br/><label>Dewey Class. No.: </label>Zb181