*Un\ f^'^rt£^yU J] 



THE BOTANY 



OF 



ICELAND 



EDITED 

 BY 



L. KOLDERUP ROSENVINGE 



PH. D. 

 AND 



EUG. WARMING «— "T"" 



PH. U . SC. D. 



PART I 



1. THE MARINE ALGAL VEGETATION BY HELGI JONSSON, PH. D. 



(published by the aid of the carlsberg fund) 



COPENHAGEN 

 J. FRIMODT 



LONDON 



JOHN WHELDON & CO. 



1912 



