Tabulation of cruise data for fiscal year 1978 as part of the Puerto Rico Marine Geology Co-Op. Includes information for several field activities and a location map. Tabulation covers field activities 1977-036-FA, 1977-040-FA, 1977-041-FA, 1978-003-FA, 1978-016-FA, 1978-025-FA, and 1978-028-FA.