PREFACE TO THE ENGLISH EDITION. STUDIES IN THE THEORY OF DESCENT. Part I. ON THE SEASONAL DIMORPHISM OF BUTTERFLIES. STUDIES IN THE THEORY OF DESCENT. (2) Part II. ON THE FINAL CAUSES OF TRANSFORMATION. STUDIES IN THE THEORY OF DESCENT (3) STUDIES IN THE THEORY OF DESCENT. (4) Part III. ON THE FINAL CAUSES OF TRANSFORMATION. III. THE Transcriber’s notes Cover created by Transcriber and placed into the Public Domain. The Fourth Edition of this work originally was published in two volumes; they have been combined in this eBook. The content of Volume II, including its Title page, begins after page 400. STUDIES IN THE THEORY |