SUBJECT INDEX 



227 



I 



M 



Identity of physical particle and infectious 



unit, 6-2 

 Inactivation volume for random bombard- 

 ment, 80 

 Indirect action of radiation, 89 

 Inferential character of virus study, 14 

 Influenza, buoyancy studies, 39 



chemical composition, 7 



dimensions, 5, 65 



electron microscopy of infected mem- 

 branes, 21 



hemagglutination, Hi 



inactivation dimensions, O^ 



infectivity sedimentation, 64 



recombination in, 184. 



thermal constants, 113 



U.V. action spectrum, 160, 163 



U.V. action on hemagglutination, 160 

 Insulin, absorption spectrum, 153 

 Interaction energy between protein mole- 

 cules due to fluctuating charge, "213 

 Internal energy per form of vibration, 106 

 Internal structure of viruses, 17 

 Ionic atmosphere, of bacterium. "204 



forces, 203 

 Ionic strength inside cell, 207 

 Ionization, 69 



J 



Japanese B encephalitis, dimensions, 65 



L 



Large angle scattering, see Scattering 

 Latent period, 3 



effect of radiation on, 95 

 Lesion counting, 11, 12 



animal viruses, 12 

 Local lesions, 11 



Logarithmic survival, area bombardment, 

 79 



volume boml)ardment, SO 

 Lysine polypeptides, infectivity reduction 



by, 131 

 Lysis, 3, 11 

 Lysogenesis, 12 



Magnetic ultracentrifuge, 37 

 Molecular absorption spectra, 149 



low temperature, 149 

 Motion of viruses, 24 

 Multiple hit processes, 158 

 Multiple infection, 5 

 Multiple mating process, 219 

 Multiplicity reactivation, 164 

 Mumps virus, hemagglutination, 142 

 Mutagenic agents, 5 

 Mutation of viruses, 5 

 Mutual interference, 6 



N 



Neutralization of infectivity, 9, 134 

 Newcastle disease virus, chemical compo- 

 sition, 7 

 dimensions, 65 



electron microscopy of infected mem- 

 branes, 21 

 hemagglutination, thermal action on, 



143 

 inactivation dimensions, 92 

 picture of, 198 

 Nicotiana tabacum, 21 

 Non-spherical viruses, frictional drag, 32 

 Nuclear physics methods, 13 



O 



Optical microscopy, 15 

 Origin of viruses, 12 

 Osmotic effects on viruses, 177 

 Osmotic ghosts, 177 

 absorption of, 178 

 Osmotic shock, release of DNA, 178 



Partial specific volume, 30, 31 

 Particle weight measurement, 31 

 Peptide bond absorption, 156 

 Phenylalanine, 152 



Phosphorus turnover in phage duplica- 

 tion, 187 

 Photo reactivation, 165 

 Photosynthetic energy transfer, 148 

 Physical forces, 66 



