Frank Press Lamont Geological Observatory, Palisades, N. Y. 



J. Emilio Ramirez, S. J. Estacion Sismologica, Bogota, Colombia 



Carl F. Romney Geotechnical Corporation, Troy, N. Y. 



J. G. Scholte Meteorologisch Instituut, The Netherlands 



Florence W. van Straten Navy Deoartment, Washington, D. C. 



James T. Wilson University of Michigan, Ann Arbor, Michigan 



J. Lamar Worzel Lamont Geological Observatory, Palisades, N. Y. 



The papers given at the symposium are included in this volume. 

 They stimulated much interesting- discussion and speculation, some of 

 which is also included in these proceedings. The discussions did not end 

 at the conclusion of each day's meeting but continued after the dinner 

 hour and far into the night. Since September, 1952, many interesting 

 papers on microseisms have appeared in the literature. The sponsors of 

 the symposium would like to feel that, at least in a small way, the discus- 

 sions at the symposium were responsible for the continued emphasis on 

 microseism research which is evident in the many recent scientific papers 

 and reports on the subject. 



Gordon G. Lill, 



Head, Geophysics Branch, 



Office of Naval Research 



IV 



