BULLETIN OF THE STATE UNIVERSITY OF lOJV'A 

 NEW SERIES NO. 2S / MAT 13, 1911 



IN THE SERIES OF RESEARCH BULLETINS OF THE UNIVERSITY 



BULLETIN 



FEOM THE 



LABOEATOEIES OF XATUEAL HISTORY 



/ 



OF 



THE STATE UNIVERSITY OF IOWA 



EDITORIAL STAFF 



Samuel Calvix, Geology 

 Thomas H. Macbride. Botany 

 Charles C. Nutting, Zoology 



VOLUME VI 



NUMBER 1 



THE HYDROIDS 



of the I 



WEST COAST OF NORTH AMERICA 



With special reference to those of the Vancouver Island region 

 with a map and eight plates 



C. McLEAN ERASER 



UBRARY 

 KBW YORK 

 BOTANICAL 



OAitDBN* 



PUBLISHED BY THE UNIVERSITY 



Issued Twexty-oxe Times Di-rixg The Academic Teak: Monthly From October To- 



Janu.\ky, Weekly From February To June. Entered At The Post Office 



IX Iowa City As Second Class Mail Matter 



