Contents 
309 Fundamental Mechanisms of Ion Channel Proteins 
Christopher Miller, Ph.D. 
311 Neural Foundations of Vision 
J. Anthony Movshon, Ph.D. 
313 Human Retroviral Gene Expression and Cellular Transcription 
Gary J. Nabel, M.D., Ph.D. 
315 Molecular Analysis of Muscle Contraction 
Bernardo Nadal-Ginard, M.D., Ph.D. 
31 7 The Genomic Response to Growth Factors 
Daniel Nathans, M.D. 
319 Molecular Biology of Visual Pigments 
Jeremy Nathans, M.D., Ph.D. 
323 Gene Regulation in Animal Cells 
Joseph R. Nevins, Ph.D. 
325 Molecular Genetics of X-linked Disease 
Robert L. Nussbaum, M.D. 
327 Function of Proto-oncogenes in Early Embryogenesis 
Roeland Nusse, Ph.D. 
329 Molecular Genetics of B Cell Development 
Michel C. Nussenzweig, M.D., Ph.D. 
331 Mechanism of DMA Replication 
Michael E. O'Donnell, Ph.D. 
333 Dealing with DNA on a Large Scale 
Maynard V. Olson, Ph.D. 
335 Molecular Genetics Studies on Hematopoietic Cells 
Stuart H. Orkin, M.D. 
337 Eye Development, Pigmentation, and Insertional Mutagenesis 
Paul A. Overbeek, Ph.D. 
339 Structural Studies of DNA-binding Proteins 
Carl O. Pabo, Ph.D. 
343 The X and Y Chromosomes in Mammalian Development 
David C. Page, M.D. 
345 Mammalian Development and Disease 
Richard D. Palmiter, Ph.D. 
347 Regulation of Gene Expression in Steroid Hormone Biosynthesis 
Keith L. Parker, M.D., Ph.D. 
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