This volume is a collection of the papers presented on a study day ""Transfrontier Mobility of Law"" held in Erasmus University, Rotterdam, on 23 September 1994, with an additional paper prepared by Professor Legrand who made a valuable contribution to the discussion on that occasion.;These papers aim to help the reader to see how the problems associated with the transfrontier mobility of law are universal, how interesting such movements are - not just in historical terms, but in the making - and how there is indeed a universal need for a wider analytical framework to assess future developments.