VI CONTRIBUTORS 



E. Steemann Nielsen, Danmarks Farmaceutiske Hojskole, Botanisk Laboratorium, 



Universitetsparken, Copenhagen 



June Pattullo, Department of Oceanography, Oregon State University, Corvallis, 

 Oregon 



L. Provasoli, Haskins Laboratories, 305 East-43rd Street, New York 17, N.Y. 



D. W. Pritchard, Chesapeake Bay Institute, The Johns Hopkins University, 

 121 Maryland Hall, Baltimore 18, Maryland 



A. C. Redfield, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 



J. L. Reid, Scripps Institution of Oceanography, University of California. La Jolla. 

 California 



F. A. Richards, Department of Oceanography, University of Washington, Seattle 5. 



Washington 



G. A. Riley, Bingham Oceanographic Laboratory. Yale University, Yale Station. 



New Haven, Connecticut 



J. H. Ryther, W r oods Hole Oceanographic Institution, W T oods Hole, Massachusetts 



M. B. Schaefer, Institute of Marine Resources, Scripps Institution of Oceanography. 

 University of California, La Jolla, California 



G. H. Volkmann, Woods Hole Oceanographic Institution, Woods Hole, Massa- 

 chusetts 



W. S. von Arx, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 



W. S. Wooster, Scripps Institution of Oceanography, University of California, La 

 Jolla, California 



