16 January 1957 J3-H-29 where: you g€0 with the first shot and how much of the reef is breached. And whether you could get inside with the LSD. GIBBINS: Yes. CURRY: Is Ieaecs prepared to hezard any guess about the exchange rate, if he is not eble to make the eurvey? GISBINS: Does he have any feelings about that? Well, all I can say about that is that -- oh, one more thing. go inte this pert of it, too. I had better In connection with this business of what happens when you breach the reef, in view of the fact that you want to stay out to the edge of that crater before you step over it and block the edge of it inside with a second shot. We explored, in a very preliminary way with the Richuond University Field Stetion, the feesibility of a model otudy. We eskea them these questions: coulé be obcained from model stuty? Corzld you make @ model accurate enough to give you any facts cr invornaticn? questions. Do they feel that any information Off hand, they wouldn't enswer the. They said that they would not guarantee anything. They recog- nize that tais vertical mixing thing is a hard thing to dig up without knoving anyching about the conch. But when we told them that there was & merine survey being contemplated, they asked us to be eble to put one man et work on reking @ feasibility etudy of the Peasibility of ea model. Which is the right vay to approach it, believe me, end we agreed thet thie was ali right. The Laboratory is willing to poy for this one guy. Iseaca had requested that after the marire eurvey, they get a photo survey of Taonzi up to date and when ve startec teiking to the people at the Richmond Field fiatian, they said they would like to heve this survey meade before Isaaca goes sut so that if there are any points of information that Iseacs could pick -p for them, that they cculé discover from the photo survey, they Could ds it at that tine. end trey beve started that. COPIEDDOE L250 ka So, we asked the Tésk Force to get such @ survey, Whether they cen get it +o us in cclor or not ~15-

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