TONG: (continued ) MITCHELL: have a sizeable factor between the availabliity of this active strontius, Vell, that would have to be investigated if you wanted this type ef stand, use In other wrds, the assunption that rede in this atuff is that the thing {s full of unknowns t. what the path wey, particularly the quantatative path of strcntiua is, and so I set up this adel to take into things we do know, which is that we accumlate 7/10 of grams cf strontius cver the grewth pericd and then lock a {t as a trecer axperinent and say how much of the sam of biclegically available streontiua you have te have, for instance, if Dr, libhy'sa idea about the ruhy were ocrrect then the whcle thing would just be no dice, se that the assumption is that whatever amount you have times the fac of availability, that these figures would set up an ac ur mel, VOICE: The experinentel data cught to be available so that, because the soil pecple have done a great deal cf base exchange werk. Presunsbly cnly base exchangeable stront! is available ani this vould greatly reduce the eacunt of strontiua 9% you need to put cn per ecre, It is very that 1 part available por hunired is available, scasthing like that. The other one huntred becones available /ef