Bulletin de l'Institut Océanographique 



(Fondation ALBERT I er , Prince de Monaco) 



No 285. — 25 Février 1914. 



The Circulation of the Abyssal Waters of 

 the Oceans, as indicated by the Geogra- 

 phical and Bathymetrical Distribution 

 of the Recent Crinoids. 



Austin H. CLARK 



Page 



Preface 1 



The Habits of the Crinoids 2 



The Range of the Genus Florometra 3 



Significance of the facts brought out by the distribution 



of the species of the genus Florometra 6 



The Ocean Currents in the North Pacific Basin 10 



Comparison of Conditions in the Sea of Japan, the Sea of 



Okhotsk and the Bering Sea with those in the Pacific 



Ocean i3 



The Conditions off the Coast of California 17 



The Océanographie Conditions in the Northeastern Pacific 17 



The Conditions in the Kuril Islands 19 



The Source of the Water forming the Currents of the 



Antarctic Regions 21 



The Conditions in the Atlantic Ocean 25 



The Effect of Océanographie Change in the Antarctic ... 2b 



Summary , 26 



PREFACE 



Although much work has been done in the application of 

 the facts brought out by the study of the distribution of 

 organisms in the oceans, especially of the organisms composing 

 the so-called plankton, toward the solution of many of the 

 problems bearing upon the broader aspects of oceanography, 

 still scarcely a beginning has as yet been made in the application 

 of these facts to a solution of the problems connected with the 



( MAY 



