Contents 



Preface v 



List of Contributors vii 



Part I: THE MICROBE AS A LIVING SYSTEM 



1. The Microbe as a Whole 3 



CORNELIS B. VAN NIEL 



^. Some Aspects of Metapoietic Integrations 13 



ANDRE LWOFF 



3. Genetics and Microbiology 24 



JOSHUA LEDERBERG 



4. Nutritional and Enzymatic Studies on 

 Microbial Mutants 40 



BERNARD D. DAVIS 



Part 2: METABOLISM OF MICROORGANISMS 



5. Progress and Problems in Bacterial 

 Metabolism 61 



H. A. BARKER 



6. Molds as Metabolic Models 86 



JACKSON W. FOSTER 



ix 



7Ci>o4 



