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TABLE OF CONTENTS 



PAGE 



LIST OF ILLUSTRATIONS xv-xviii 



PART I. INTRODUCTORY AND HISTORICAL 



CHAPTER I. INTRODUCTION 3 



What Organic Evolution Is Definitions 3 



The Modern Attitude as to the Truth of the Evolution Doctrine . 5 



What Organic Evolution Is Not 8 



CHAPTER II. HISTORICAL ACCOUNT OF THE DEVELOPMENT OF THE 



EVOLUTION THEORY. H . H. N 10 



Evolution among the Greeks 1 1 



Post-Aristotelians 14 



The Early Theologians 14 



The Revival of Science 15 



The Great Naturalists of the Eighteenth Century 16 



Lamarck 18 



Cuvier and Geoff roy St. Hilaire 21 



Catastrophism and Uniformitarianism 22 



The Reawakening of the Evolution Idea 23 



Charles Darwin 24 



Summary of Darwin's Theories 25 



Contemporary Opinion Regarding the Validity of Darwin's Views 27 



Isolation Theories 32 



Orthogenesis Theories 33 



Mutation or Heterogenesis Theories 36 



The Rise and Vogue of Biometry 38 



Modern Experimental Evolution 39 



Mendel's Laws 41 



Hybridization and the Origin of Species 43 



Neo-Mendelian Developments 43 



Heredity and Sex 44 



CHAPTER III. THE RELATION OF EVOLUTION TO MATERIALISM. 



Joseph Le Conle 46 



PART II. EVIDENCES OF ORGANIC EVOLUTION 



CHAPTER IV. Is ORGANIC EVOLUTION AN ESTABLISHED PRINCIPLE? 



H.H.N 57 



CHAPTER V. EVIDENCES FROM PALAEONTOLOGY 61 



Strength and Weakness of the Evidence 61 



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