18 ANNUAL REPORT OF THE 



REPORT ON THE COELENTERATES. 



By Henry B. Bigelow. 



A series of fresh- water Medusae from Bass Lake, Indiana, pre- 

 sented by Prof. F. Payne, and others from Florida, collected by 

 Mr. George Nelson, deserve mention. 



A large collection of Medusae from Chesapeake Bay, (U. S. 

 Bureau of Fisheries), and smaller series from the Bay of Fundy, 

 (Canadian Biological Station at St. Andrews), have been received 

 for study and report. 



The preparation of a comprehensive account of the biology and 

 oceanography of the Gulf of Maine, (cf. Report M. C. Z., 1920- 

 1921, p. 25), has occupied my time throughout the year. The 

 sections on phyto- and zooplankton are complete; that on fishes, 

 well advanced, leaving the chapters on hydrography to be prepared. 



I have continued a general oversight of the scientific program of 

 the International Ice Patrol of the Grank Banks, Lieut. E. A. 

 Smith and Mr. E. F. B. Fries caring, respectively, for the collection 

 of the physical and biological data gathered on the February-July 

 cruises. Arrangements have been made for the study of these col- 

 lections by Lieut. Smith and Mr. Fries, as members of the Gradu- 

 ate School of Harvard University. 



According to a plan of the International Committee on Marine 

 Fishery Investigations, the Halycon set about 1200 ocean drift 

 bottles afloat on lines normal to the coast off Cape Elizabeth, off 

 Cape Cod, and off Sandy Hook, during the early summer of 1922. 

 While it is too early to plot the results, so considerable a percent- 

 age of the bottles have already been recovered, that a valuable 

 addition to our knowledge of the ocean currents of this region is 

 anticipated. 



