be located on Engebi, Rojoa, Runit, and Parry. The water in the field of view will be marked witn floats and beach poles will be erected at toe snore line. During this period it was determined that Sandia would not perform the microbarographic measurements (Project 6.6). This project necessitated a considerable amount of instrumentation exterior to the U. S. Protectorate territory. <A subsequent conference between Drs. Graves and Ogle led to tne decision that all instrumentation would be accomplisned within tne limits of tne above-mentioned protectorate to preclude tne possibility of political complications. As the evaluation of tne information received from the limited microbarograph instrumentai. Measurement of underwater pressures across tne lagoon (Project 6.7a) by the Bureau of Salps has been dropped completely. Measurements of under-water pressures in deep water has been dropped by the Bureau FQ trye ~ tion tus implied would be inconclusive, tae project was cancelled. ~~ of Snips. However, it is understood that the Naval Research Laboratory Ls is interested in making tne deep water measurements if arrangements can be made in time. The office of Naval Researca is investigating the letter possibility, 7 Sop sd G°r% 2.7 7 1% Sf itt bersieg i Wid| ‘ i) Project 6.8 has been dropped on the basis of the experience eck during the Tumbler-Snapper operation. | | Work has started on the design of a final model of the beta densitometer to be used in Project 6.9. This design will resemble the type that proved successful during the recent bomb tests at Nevada. Certain radical changes are required in this new model; these changes BEST AVAILABLE COPY . . - ;