a iw ” cr ACKNOWLEDGEMENTS The magnitude of this project required the support and cooperation of many groups and individuals. The authors wish to thunk the Project Officer, &. R. Tompkins, for his sincere interest and help during the entire course of the work. They are also indebted to the following for their effective contributions to the project. Radiological(SNRDL) 1. Fourteen additions! investigators from the Chemical Technology Division participated in the field phases of the project. R. R. Soule, P, E, Zigmen, W. B. Lane, and E. C. Evans III assumed responsibilities as team leaders. 2. The Engineering Division supplied craftsmen and technicians for field work in addition to services in the development and procurement of instruments. P.A, Covey, D.F. Covell, LTJUG R.F. Johnson, USNR, and W. L. Snapp made significunt contributions in the field. 3. The Instruments branch of the Nucleonics Division assisted extensively in the pre-operation testing of buoy identifiers and produced, installei, and serviced the transmitter system used. Two engineers, H. L. Gottfried and F. A. Rhoads, made signific.nt contributions in the labor:tory and in the field. 4. The Analytical and Standards Branch of the Chemical Technolo;y Division provided much help in the treatment and analysis of simples. te wW. H, Shipman and J. R. Lai mde significant contributions. 5 The following Project 2.6a personnel gave valuable assistunce in the field: W. J. Heiman, R, Cole, J. F. restaner, 5. Singer, and M. J. Nuckollis. 4 6. In addition to an effective contribution in the field, J. M. 7, (©, A. Adams of Chemical Physics Branch, Chemical Technology McCampbell of Military Evaluations Group assisted in particle size analyses. Division assisted in ev.luetiond? particle size data. 8. D. D. Cole of Procurement Liaison and Materials Control Division assumed responsibility for materiel control in the field and made a significant contribution in handling return shipments cf sumples and equipment. 9. CDRH. L. leichter, USN, LCDR F, J. Sisk, USN, and LCDR J. Cady, USN, projects officers et USNRDL, contributed extensively to invesvigating 7 ore