SUBJECT INDEX 



667 



X irradiation (continued): 



cytological methods, 479-80 



Drosophila, 468-73, 470-9 



types of data, 470-3 



virus, 473-5 

 X radiation. See A' rays, Ionising 



radiation, and X irradiation. 

 X rays, 451-90. See also X irradiation. 



absorption, 458-61, 465-6 



biological effects, 468-88 



characteristic, 459-60 



depth-dose, 458-61 



X rays {continued): 



effects, interpretation, 486-8 

 point heat concept, 462-4 

 sensitive volume concept, 464-8 

 theory, 462-8 



filters, 461-2 



measurement, 456-62 



monochromatic, 461-2 



sources, 453-6 



Zeta-potential, 272 



