“…We also have found clusters of nuclear masses, formed into a shape very similar to that of chromosomes. These formations, resembling seriously damaged mitoses, we observed after radiation doses that greatly exceeded those used by Pomerat et al (1957) and by Nias and Paul (1961). Obviously, even doses of 100,000 rads do not exert an immediate lethal effect on all EAT cells, at least when put into optimal life-conditions.…”