The present volume is a continuation of Volume 8 in the Annals series. Together Volumes 8 and 9 are intended to show the contribu- tion of history to theory in psychology. The reader is referred to the Introduction by Hans Rappard and Pieter van Strien, and the Preface in Volume 8 that serve as a prelude to the papers included in both volumes. Volume 8 includes three major papers: Psychological objects, practice, and history by Kurt Danziger, with commentaries by Mitchell Ash, Franz Samelson, and John Mills; History and the psychological imagination by Irmingard Staeuble, with commentar- ies by Carl Graumann and Roger Smith; and The historical practice of theory construction by Pieter 1. van Strien, with commentaries by Helmut Luck, Kenneth Gergen, and Ian Lubek. Similarly, the present volume includes three major papers and ten commentaries. In preparation of this volume and its companion, Volume 8, we gratefully acknowledge the assistance of Valerie Welch who entered the text, and Casey Boodt who proofread the text and prepared the indexes. Leendert P. Mos and William J. Baker June, 1993 vii Contents Chapter 1. History and system . . . . . - . . . - . . . . . . . . . . . . 1 . . . Hans V Rappard Psychology as its history . . . -. . . . . --. . . . -. -. . . . -. . 41 Daniel N. Robinson Theoretical psychology, systematology, and phenomenological variation. . . - . . . . . . . . . . . . . . . . . . 47 . Eckart Scheerer Systematization and history. . . . . . . . . - - . . . . . . . . . . . . 63 K. B. Madsen Towards the remarriage of theoretical psychology and psychology: Reply to commentators. . . . . . . . . . . . . . . . 67 Hans V Rappard Chapter 2.