/L.OCC'C^M 



A Journal of General Botany 



VOLUME 20 

 NUMBER 7 

 JULY, 1917 



CONTAINING 



The Revegetation of Taal Volcano, Philippine Islands 



Frank C. Gates , 195 



An Enumeration of the Pteridophytes and Spermatophytes of the San 

 Bernardino Mountains, California 

 S. B. Parish 208 



Books and Current Literature 224 



Notes and Comment 227 



PUBLISHED MONTHLY 



OFFICE OF PUBLICATION 

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BALTIMORE, MD. 



EDITORIAL OFFICE 



TUCSON, ARIZONA 



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Ent«red bb seoond-claea matter March 9. 1912, at the post office at Baltimore, Maryland, under the Act of July 10, 1804 



