A research cruise taking place from 1947–1948 aboard the vessel "Albatross," The expedition was headed by Hans Pettersson who also edited the ten–volume series of research reports published starting in 1957. The contents of the reports were: 1. The ship, its equipment, and the voyage 2. Zoology 3. Physics and chemistry 4. Bottom investigations 5. Sediment cores from the East Pacific 6. Sediment cores from the West Pacific 7. Sediment cores from the North Atlantic Ocean 8. Sediment cores from the Mediterranean Sea and the Red Sea 9. Sediment cores from the Indian Ocean 10. Special investigations