This paper provides a detailed account of the origins of the Psycho logical Review in 1894, of the policies and practices of its editors (James Mark Baldwin and James McKeen Cattell) during its first decade, and of the public and private disagreements that led them to dissolve their collaboration in 1904. In doing so, it sheds light on the significant roles played by specialized scientific journals in the development of specific scientific specialities, and illustrates the value for historical exploration of (...) (what anthropologists call) a 'thick description' of (what historians call) 'the fine texture of the past'. It argues that personal factors such as luck and character and temperament often have a greater impact on the way in which science actually evolves than do intellectual interests and concerns, and concludes with an analysis of the overwhelming signifi cance of this episode on the later careers of both Baldwin and Cattell. (shrink)