| Description | Correspondence, notes and photographs relating to various international trips. Includes an international field meeting on the Ordovician and Silurian stratigraphy and biovents, 1990, sponsored by the Ordovician and Silurian Subcommissions, International Union of Geological Sciences and Project No 216, Bioevents, International Geological Correlation programme. Cocks was invited to attend a twelve day scientific visit to Estonian SSR in connection with the meeting by the Institute of Geology, Estonian Academy of Sciences; Podolian session of the International Subcommission of the International Union of Geological Sciences on the Silurian Stratigraphy, 1983; Ordovician-Silurian boundary conference at Nanjing, 1983. Some correspondence in Russian. |