ve 52 to be very different from the program either & year previously or a year ahead. For example, I think it would sure prise many of you, that nowhere on this pro- gram today are we going to talk about beryl= lium quartz which is one of the most importe ant probleme that this laboratorg ever faced from the standpoint of the sclentific challenge and the magnitude of the effort required to lick the problem; but this is now ancient history insofar ae the current vrogram of the laboratory is concerned, Similarly, the problems of thorium toxicology, uranium poisoning, are all problems that the laborctory hae felt within the past, but these are items which do not have a place on the agenda today, However, for orfentation, I thought that the best way you could get some idea of the diversified interests of the laboratory would be to look at the bibliography, We have selected some ninety refers ences of works published in the open litera ture since 1950, I won't go over thie bibliography