118 Information Storage and Neural Control 



49. Nomura, M., Hall, B. D., and Spiegelman, S.: Characterization ol 



RNA synthesized in Escherichia coli after bacteriophage T2 infec- 

 tion. J. Molec. Biol, 2.-306-326, 1960. 



50. Ogur, M., Minckler, S., Lindegren, G. and Lindegren, C. C: The 



nucleic acids in a polypoid series of Saccharomyces. Arch. Biochem., 

 40:175-184, 1952. 



51. Osawa, S.: The nucleotide composition of ribonucleic acids from 



subcellular components of yeast, Escherichia coli and rat liver 

 with special reference to the occurrence of pseudouridylic acid 

 in soluble ribonucleic acid. Biochim. Biophys. Acta, 42:2AA-25A, 1960. 



52. Randall, C. G. and Gafford, L. G.: The Nucleic Acid oj Fowl Pox Virus. 



Abstracts, Bacteriological Proceedings, 1961, p. 148. 



53. Rich, A.: A hybrid helix containing both deoxyribose and ribose 



polynucleotides and its relation to the transfer of information be- 

 tween the nucleic acids. Proc. Nat. Acad. Sci. USA, 46: 1044-1053 

 1960. 



54. Rolfe, R. and Meselson, M.: The relative homogeneity of micro- 



bial DNA. Proc. Nat. Acad. Sci. USA, 45.T 039-1 043, 1959. 



55. Salzman, N. P.: The rate of formation of vaccinia deoxyribonucleic 



acid and vaccinia virus. Virology, 70.- 150-1 52, 1960. 



56. Schafer, W.: The Comparative Chemistry of Infective Virus Particles 



and of Other Virus-specific Products: Animal Viruses. The Viruses I, 

 ed. by F. M. Burnet and W. M. Stanley, New York, Academic 

 Press, Inc., 1959, p. 475. 



57. SchafFer, F. L., Moore, H. F. and Schwerdt, C. E.: Base com- 



position of the ribonucleic acids of the three types of polio virus. 

 Virology, 70.- 530-537, 1960. 



58. Schuster, H.: The reaction of nitrous acid with deoxyribonucleic 



acid. Biochem. Biophys. Res. Commun., 2."320-323, 1960. 



59. Schuster, H.: The Ribonucleic Acids of Viruses. The Nucleic Acids III 



ed. by E. Chargaff and J. N. Davidson, New York, Academic 

 Press Inc., 1960, p. 245. 



60. Schildkraut, C. L., Marmur, J. and Doty, P.: Determination of the 



base composition of deoxyribonucleic acid from its apparent 

 density in CsCI. J. Molec. Biol, (in press). 



61. Schildkraut, C. L., Marmur, J. and Doty, P.: The formation of 



hybrid DNA molecules and their use in studies of DNA homologies. 

 J. Molec. Biol, (in press). 



62. Schildkraut, C. L., Marmur, J., Fresco, J. R. and Doty, P.: Forma- 



tion and properties of polyribonucleotide-polydeoxyribonucleotide 

 helical complexes. J. Bwl. Chem., 236:PC 2-4 (Feb.) 1961. 



