Contributors 



David W. Bishop, Department of Embryology, Carnegie Institution 

 of Washington, Baltimore, Maryland 



Charles J. Brokaw, Division of Biology, California Institute of 

 Technology, Pasadena, California 



Francis D. Carlson, Biophysics Department, Johns Hopkins Uni- 

 versity, Baltimore, Maryland 



Philip B. Dunham, Department of Zoology, University of Chicago, 

 Chicago, Illinois 



Don W. Fawcett, Department of Anatomy, Harvard Medical 

 School, Boston, Massachusetts 



Robert J. Flipse, Department of Dairy Science, College of Agricul- 

 ture, The Pennsylvania State University, University Park, Penn- 

 sylvania 



Pierre H. Gonse, Department Chimique, Centre de Recherches de 

 l'Air Liquide, Lyon, France 



Sir James Gray, Department of Zoology, University of Cambridge, 

 Cambridge, England 



Teru Hayashi, Department of Zoology, Columbia University, New 

 York, New York 



Leonard Nelson, Department of Physiology, Emory University, 

 Atlanta, Georgia 



F. G. E. Pautard, Department of Biomolecular Structure, University 

 of Leeds, Leeds, England 



Robert Rikmenspoel, Biophysics Laboratory, Stanford University, 

 Stanford, California 



Lord Rothschild, Department of Zoology, University of Cambridge, 

 Cambridge, England 



