PREFORMATION OR EPIGENESIS? THE BASIS OF A THEORY OF ORGANIC DEVELOPMENT BY
PROFESSOR DR. OSCAR HERTWIG DIRECTOR OF THE SECOND ANATOMICAL
PREFACE
TRANSLATOR'S INTRODUCTION
CONTENTS
THE BIOLOGICAL PROBLEM OF TO-DAY
INTRODUCTION.
PART I. WEISMANN'S THEORY OF THE GERMPLASM AND DOCTRINE OF DETERMINANTS.
PART II. THOUGHTS TOWARDS A THEORY OF THE DEVELOPMENT OF ORGANISMS. [17]
INDEX AND GLOSSARY
Heinemann's Scientific Handbooks.
