Soe 5 i. Program Six ~ DOD (USN) 2s Project 6.7c - Acoustic Pressure Waves in Water (J. ti. Smith) 3. vne Thase. “he do make special observations at séveral SOFAn (sound fixing end renging) stations in the Pacific arez, of acoustic signals propegated in deep weter. both Shots. avy SO:ah and SUFLH end SOFAH keseerch Stations, presently operating in the vacifice and Atlantic arees, will be used Sor speciel observation end anelysis of the ecoustic signels reccived during the shot period of Operation IVY. = = hot applicable. « a 4 * 10. 4 ‘ ll. " a 12. ® a = ~ 45 SC