SXJBJECT INDEX 



229 



Serological inactivation of viruses, 135 

 Serological techniques, 133 

 Shadowing technique, 15 

 Size and shape of viruses, 4 

 Sonic effects on viruses, 171 

 Sonic irradiation procedures, 170 

 Southern bean mosaic virus, absorption 

 spectrum, 156 



chemical composition, 7 



diffusion constants and radius, 28 



dimensions, 5, 65 



electron micrograph, 18 



inactivation cross section, 81 



inactivation dimensions, 9i 



infectivity sedimentation, 64 



motion studies, 46 



mutual potential energy of two par- 

 ticles, 215 



outline picture, 63 



particle weight measurement, 31 



picture, 195 



purified preparation, 10 



sedimentation pictures, 36 



serological affinity studies, 135 



thermal constants, 113 



X-ray scattering, 61 



radius of gyration from, 60 

 Spherical double layers, force between, 



209 

 Stokes law for motion in viscous fluid, 32 

 Structural deductions from radiation 



action, 96 

 Sugar beet mosaic virus, lack of observed 



particle, 21 

 Sugar beet yellows, lack of observed par- 

 ticle, 21 

 Surface charges on viruses, 127 

 Surface forces in electron microscope 



preparations, 19 

 Surface inactivation by antibody, 134 

 Svedberg unit, 30 



Theory of thermal inactivation, 103 

 Thermal constants of dry viruses, 116 

 Thermal inactivation, ionic strength, 115 

 pH, 116 



Thermal inactivation, plant viruses, 110 



pressure effects, 117 



serological affinity, 140 



viruses, 103, 109 



thermal constants for, 113 

 Thermally resistant strain of virus, 115 

 Thymine, 149 

 Tobacco etch virus, lack of observed 



particle, 22 

 Tobacco mosaic virus, absorption spec- 

 trum of, 152 



at low temperatures, 155 



by polarized light, 154 



amino acid content, 8 



chemical composition, 7 



dimensions, 5, 65 



early radiation studies, 91 



electron micrographs, 19, 20 



inactivation cross section, 81 



inactivation dimensions, 92 



infectivity sedimentation, 64 



interparticle distance and concentra- 

 tion, 208 



ionic atmospheres, 207 



motion studies, 49 



outline picture, 63 



particle weight, 31 



picture, 196 



quantum yield for inactivation, 163 



serological studies, 135 



sonic action on, 173 



sonic action on serology of, 176 



surface amino groups, 7 



thermal constants, 113 



thermal inactivation, 110 



thermal inactivation and denatura- 

 tion. 111 



ultraviolet action spectrum, 163 



unit cell, 56 



X-ray diffraction, 57 

 Tobacco necrosis virus, crystals of, 55 



dimensions, 65 



electron micrograph of crystal, 54 



inactivation dimensions, 92 



purified preparation, 10 



radius of gyration. X-ray scattering, 60 



thermal constants, 113 



thermal inactivation, 110 



