Scope and Contents Microfilm copies of field books created during an expedition led by Roy Chapman Andrews and sponsored by the American Museum of Natural History.Box 1. Geological reconnaissance in central Mongolia / Dr. Berkey. (1st-9th book, season of 1922) -- Box 2. Geological reconnaissance in central Mongolia / Dr. Charles P. Berkey (10-16th book, season of 1925) -- Box 3. Dr. Berkey's notes, devoted to summaries and topics and problems, season of 1922. T.A.E. summary book, 1923. Dr. Berkey's...