Chapter VI. The Biological Species

Chapters in this book

1. Frontmatter 1
2. Contents 5
3. List of Illustrations 7
4. Preface 9
5. Chapter I. Introduction 11
6. Chapter II. Methods of Classification 15
7. Chapter III. Rank 27
8. Chapter IV. Names 42
9. Chapter V. The Polytypic Species 48
10. Chapter VI. The Biological Species 73
11. Chapter VII. Other Sorts of Species 98
12. Chapter VIII. Geographical Speciation 130
13. Chapter IX. Sympatric Speciation 169
14. Conclusion 182
15. Suggestions for Further Reading 184
16. Afterword (1993) 187
17. Index 203