WILLIAM A. SETCHELL 



A Magazine of General Botany 



VOLUME 19 

 NUMBER 2 

 FEBRUARY, 1916 



OOIfTAIMXMO 



The Geological History of Gjrmnosperms 



Edward Wilber Berry 27 



The Daily Movements of Leguminous Leaflets 



Frank C. Gates 42 



Parch Blight on Douglas Fir in the Pacific Northwest 



Thornton T. Munger 46 



Books and Current Literature 48 



Notes and Comment 61 



PUBLISHBD MON7BLT 



OFFICE OF PUBLICATION 



2419-21 Greenmovnt Ate. 



BALTIMORE, UO. 



EDITORIAL OFFICE 



TUCSON. ARIZONA 



Entorcd as aooond-cUsa iniitt«r XIarcb 9. 1012. at the post o£Eioe at Baltimore, Maryland, under the Act of July 16. IK34 



