Thutamel, Carls., J?h.D., Assistant Investigator 317 
University of Utah School of Medicine 
Molecular Basis of Metamorphosis in Drosophila 
Tilghman, Shirley M., Ph.D., Investigator 319 
Princeton University 
Developmental Regulation of Genes 
Tjian, Robert, Ph.D., Investigator 321 
University of California at Berkeley 
Mechanism of Transcriptional Regulation in Animal Cells 
VaUe, David, M.D., Investigator 325 
The Johns Hopkins University School of Medicine 
Genetic Defects in the Metabolic Pathways Interconnecting the Urea and Tricarboxylic Acid Cycles 
Van Dop, Cornelis, M.D., Vh..!)., Assistant Investigator 329 
Harvard University consortium: Children's Hospital 
Molecular Basis of Disease 
White, Raymond L., Ph.D., Investigator 333 
University of Utah School of Medicine 
Genetic Linkage Mapping in the Search for Disease Genes 
Williams, David A., M.D., 4ssisf«wf/wfesfigafor 337 
Harvard University consortium: Children's Hospital 
Molecular Hematopoiesis 
Woo, Savio L. C, Ph.D., Investigator 339 
Baylor College of Medicine 
Molecular Genetics of Human Disorders 
Young, Michael W., Ph.D., Investigator 343 
The Rockefeller University 
Molecular Studies of Behavior and Development in Drosophila 
137 
