X CONTRIBUTORS 



John D. Spikes, Department of Experimental Biology, University of Utah, Salt Lake 

 City, Utah 



C. J. P. Spruit, Landhouwhoqe School, Wageningen, Netherlands 



Bernard L. Strehlor, National Heart Institute, National Institutes of Health, Bclh- 

 esda, Maryland {Formerly at Department of Biochemistry and Research In- 

 stitutes, University of Chicago, Chicago, Illinois) 



S. Takashima, School of Chemistry, Institute of Technology, University of Minne- 

 sota, Minneapolis, Minnesota 



Hiroshi Tamiya, The Tokugawa Institute for Biological Research and The Institute 

 of Applied Microbiology, University of Tokyo, Tokyo, Japan 



N. E. Tolbert, Biology Division, Oak Ridge National Laboratory, Oak Ridge, Ten- 

 nessee 



Hemming I. Virgin, Botanical Laboratory, University of Lund, Lund, Sweden 

 {Formerly at Department of Plant Biology, Carnegie Institution of Washington, 

 Stanford, California ) 



Wolf Vishniac, Department of Microbiology, Yale University, New Haven, Connecti- 

 cut 



E. E. Walldov, Charles F. Kettering Foundation, Yellow Springs, Ohio 



E. C. Wassink, Laboratory of Plant Physiological Research, Agricidtural University, 



Wageningen, Netherlands 



F. R. Whatley, Laboratory of Plant Physiology, Department of Soils and Plant 



Nutrition, University of California, Berkeley, California 

 C. P. Whittingham, The Botany School, Cambridge University, Cambridge, England 

 H. T. Witt, Physikalisch-chemisches Institut, Universitat Marburg, Marburg /Lahn, 



Germany 

 L. P. Zill, Research Institute for Advanced Studies, Inc., Baltimore, Maryland 



{Formerly at Biology Division, Oak Ridge National Laboraiory, Oak Ridge, 



Tennessee) 



