Читать книгу The Biological Problem of To-day: Preformation Or Epigenesis? - Oscar Hertwig - Страница 2

PREFACE

TRANSLATOR'S INTRODUCTION

THE BIOLOGICAL PROBLEM OF TO-DAY

INTRODUCTION.

PART I.

WEISMANN'S THEORY OF THE GERMPLASM AND DOCTRINE OF DETERMINANTS.

Criticism of the Germplasm Theory. [8]

I. Objections to the Hypothesis of Differentiating Division.

FIRST GROUP OF FACTS.—UNICELLULAR ORGANISMS.

SECOND GROUP OF FACTS.—THE LOWER MULTI-CELLULAR ORGANISMS.

THIRD GROUP OF FACTS.—THE PHENOMENA OF REPRODUCTION AND REGENERATION IN PLANTS AND ANIMALS.

FOURTH GROUP OF FACTS.—THE PHENOMENA OF HETEROMORPHOSIS. [12]

FIFTH GROUP OF FACTS.—PHENOMENA OF VEGETATIVE AFFINITY. [16]

SUMMARY OF THE CONCLUSIONS IN THE FIRST SECTION.

II. ARGUMENTS AGAINST THE DOCTRINE OF DETERMINANTS.

PART II.

THOUGHTS TOWARDS A THEORY OF THE DEVELOPMENT OF ORGANISMS. [17]

INDEX AND GLOSSARY