Quarterly Progress Report 1 April 1955 through 30 June 1955. Open PDF Document Details Document Type Technical Report Publication Date Aug 03, 1955 Accession Number ADA052253 Entities Organizations Scripps Institution of Oceanography Tags Communities of Interest Ground and Sea Platforms DTIC Thesaurus Topics Acoustics Earth Sciences Engineering Geography Materials Measurement Military Research Naval Operations Navy New Jersey New York Oceanography Ordnance Laboratories Reflection Time Intervals Travel Time Underwater Sound