----------------------------Original message---------------------------- Peter- Geo Katalog 2 has a reference to a book, "Geology of Galapagos, Cocos, and Easter Islands" by Lawrence John Chubb (Bernice P. Bishop Museum Bulletin 110), 1933. We have a copy in our bookstacks, which you could request thru ILL. There is not a geological map included, however...just a small sketch of the topography of Easter Island. But maybe this work would be useful to him/her. Hope this helps. Steve Rogers Ohio State Univ. Libs. [log in to unmask]