tated by the herbarium material available at the Allan Hancock Founda- 

 tion, University of Southern California. 



Los Angeles, California 

 October, 1955 



^ ^^^ /C/^i.*^^^<i^>v^ 





Almost every one who walks along an ocean beach wonders about 

 the plant debris left by the waves. The need for a book offering 

 ready identification of the more evident species of marine algae is 

 apparent. 



It is truly timely that Dr. Dawson, with his splendid experience 

 with these interesting plants, has given us this much-needed identifi- 

 cation manual. 



Editor 



