postdoctoral fellowships cognitive science available institute research cognitive science ircs university pennsylvania provides opportunities several postdoctoral positions cognitive science deadline applications february 1 1995 apply please send cover letter indicating proposed research including statement would benefit working interdisciplinary environment resume two three referees send letters reference directly postdoctoral fellow selection committee institute research cognitive science university pennsylvania 400c 3401 walnut street philadelphia pa 191046228 university pennsylvania affirmative action equal opportunity employer