Marine ice data extracted from historical records of ship-observed sea ice and iceberg positions from the circum-Antarctic expeditions of James Cook (1772-75) and Fabian Gottlieb von Bellingshausen (1819-21), including ice data from the separate voyages of the accompanying vessels. An indication of when size information was gathered in the journals is given, as well as when a vessel harvested water from iceberg growlers.

Publication assisted by Leverhulme Emeritus Fellowship EM-2022-042 to Professor Grant R. Bigg: "Extending the Southern Ocean marine ice record to the eighteenth century".