I'll say thet my suspicion ts that it's smller than 2 micrins. LOB: What was the evidencef . Z think this is a very important question, an one that ve have te talk about a great desl more. Let me take two minutes. LiTpsY: The rain in Massachusetts is redicactive, and when subjected to the norml water purification processes, we redionctivity is removed to only 50$. Mow this normal purification process {s precipitation — of aluminus hytroxide. Ise this correct? That is correct, yes sir. And this mkes a flock vhich is filtered out, and itis a goo cation process. This thing removes coloring atter, the t makes the water colored. It's s good vater filtration prc seme form of radioactivitywhich resists this, La: Well, you bave te take those thingsin solution viich would sot be LISSYs co-precipitated with alumimm hydroxide, and then you look af the flesion product yield curves and you say what are those radicactivi Be It's something of a puzzle, We on the basis of this vere contespjating uhst ve call “hundred angstrom rubies” and it's @ concept. I am no that this type of evidence proves the existence of small coljoidal particles, but it certanly does indicate that there is sasething vhich need investigated about the physical form of radioactivity vhich ¢ Maosochusctts rainstorm, Denartr-“ Histes.- Ade.