In this paper we explore the complex relationship between the philosophies of Sir William Hamilton and Henri Bergson. We then place these philosophies in a critical relation to French phenomenological philosophy, particularly, Merleau-Ponty's. By so doing we examine a historical and theoretical 'ark' that rises in 19th Century Scotland and falls in 20th Century France, an ark that has received little attention hitherto by historians of philosophy. Our aim is to open up a new dimension of these philosophies and provoke (...) a fresh debate over their relationships and the philosophical tensions that exist between them. (shrink)