Xii LIST OF CONTRIBUTORS 



C. Edmund Marshall, Department of Soils, University of Missouri 

 Daniel Mazia, Department of Zoology, University of California, 



Berkeley 

 A. A. Moscona, Department of Zoology, University of Chicago 

 A. G. Norman, Department of Botany, University of Michigan 

 Aaron Novick, Institute of Molecular Biology, University of Oregon 

 Arthur B. Pardee, Department of Biochemistry and Virus Laboratory, 



University of California, Berkeley 

 Gregory Pincus, Worcester Foundation for Experimental Biology, 



Shrewsbury, Mass. 

 Glenn S. Pound, Department of Plant Pathology, University of 



Wisconsin 

 Theodore T. Puck, Department of Biophysics, Florence R. Sabin Lab- 

 oratories, University of Colorado Medical Center, Denver 

 Morell B. Bussell, Department of Agronomy, University of Illinois 

 Miriam M. Salpeter, Department of Zoology and Laboratory of Elec- 

 tron Microscopy, Department of Engineering Physics, Cornell 

 University 

 Marcus Singer, Department of Anatomy, School of Medicine, Western 

 Reserve University, and Laboratory of Electron Microscopy, De- 

 partment of Engineering Physics, Cornell University 

 F. C. Steward, Department of Botany, Cornell University 

 Maurice Sussman, Department of Biology, Brandeis University 

 Claude W. Wardlaw, Department of Botany, University of Manchester, 



England 

 Frits W. Went, Director, Missouri Botanical Garden, St. Louis 

 Carroll M. Williams, The Biological Laboratories, Harvard University 

 Joseph T. Woolletj, U.S. Department of Agriculture Agricultural Re- 

 search Service, and Department of Agronomy, L^niversity of Illinois 

 Erik Zeuthen, Biological Institute of the Carlsberg Foundation, 

 Copenhagen 



