A SYLLABUS ON PROCEDURES, FACTS, 

 AND INTERPRETATIONS IN PHAGE 



By 



S. Benzer W. Hudson W. Weidel 



M. Delbruck G. S. Stent J. J. Weigle 



R. DuLBECCo J. D. Watson E. L. Wollman 



1 Introduction 



2 . . . . /. Free Phage 



3 Identification of infective units with physical particles. 



4 Morphology. 



(a) Electron micrographs. 



(b) Osmotic shock. 



5 Chemical composition of phages. 



6 Stability. 



7 Serology. 



(a) Bacteriophages as antigens. 



(b) Phage anti-phage reaction. 

 8 Virus mutants. 



9 Taxonomy. 



lo Cof actor activations. 



11 Radiation inactivation. 



12. . . . //. Glossary 



13. . . .///. Adsorption 



14 Adsorption vdthout killing of the bacteria 



15 Mechanism of the adsorption process. 



16 The bacterial change from sensitivity to resistance. 



17 Receptor spots. 



1 7a Supplementary information on receptor spots, by W. Weidel 



18. . . .IV. Invasion 



19 Characteristics of invasion. 



20 Phage T5 in the absence of calcium. 



21 Ultra-violet treated phage. 



V. Multiplication 



22 Burst size distribution — correlation with size of bacteria. 



23 Latent period. 



24 Influence of growth medium. 



25 Dependence of the latent period on the temperature. 



26 Dependence of growth on specific supplies. 



27 Premature lysis. 



28 Fate of the infecting particle. 



VI. Mixed Infections 



29 With particles differing by one mutational step. 



