The Principles of Biology, Volume 1 (of 2)Volume 1 / Part 1 — PART I.Reading editionChapter navigation51 reading sectionsGo to chapterChoose a chapter…Front matterPREFACEPREFACE.PART I.Chapter IChapter IIChapter IIIChapter III · A.Chapter IV · [14]Chapter VChapter VIChapter VI · A.Chapter VIIPART II.Chapter IChapter IIChapter II · A.Chapter IIIChapter IVChapter VChapter VIChapter VI · A.Chapter VIIChapter VIIIChapter IXChapter XChapter X · A.Chapter XIChapter XIIPART III.Chapter IChapter IIChapter IIIChapter IVChapter VChapter VIChapter VIIChapter VIIIChapter IXChapter XChapter XIChapter XIIChapter XIIIChapter XIVChapter XIV · A.APPENDIX A.APPENDIX B.APPENDIX B. (continued 2)APPENDIX B. (continued 3)APPENDIX C.APPENDIX D.Previous chapter ←PREFACE.Next chapter →Volume 1 / Part 1 — Chapter IAll chapters and sections (51)Opening pagesFront matterOther sectionsPREFACEPREFACE.Volume 1 / Part 1 · Parts1Volume 1 / Part 1 · Chapters123Volume 1 / Part 1 · Other sectionsChapter III · A.Volume 1 / Part 1 · Chapters456Volume 1 / Part 1 · Other sectionsChapter VI · A.Volume 1 / Part 1 · Chapters7Volume 1 / Part 2 · Parts2Volume 1 / Part 2 · Chapters12Volume 1 / Part 2 · Other sectionsChapter II · A.Volume 1 / Part 2 · Chapters3456Volume 1 / Part 2 · Other sectionsChapter VI · A.Volume 1 / Part 2 · Chapters78910Volume 1 / Part 2 · Other sectionsChapter X · A.Volume 1 / Part 2 · Chapters1112Volume 1 / Part 3 · Parts3Volume 1 / Part 3 · Chapters1234567891011121314Volume 1 / Part 3 · Other sectionsChapter XIV · A.APPENDIX A.APPENDIX B.APPENDIX B. (continued 2)APPENDIX B. (continued 3)APPENDIX C.APPENDIX D.THE DATA OF BIOLOGY.◇← PREFACE.CHAPTER I. →