GSA-Ian Baker ms on "Petrology of the Volcanic Rocks of Saint Helena Island, South Atlantic, October 1968

GSA-Ian Baker ms on "Petrology of the Volcanic Rocks of Saint Helena Island, South Atlantic, October 1968, Box: 78, Folder: 41. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/151193 Accessed December 25, 2025.