Table of contents : PREFACE CONTENTS INTRODUCTION I THE CALL FOR OXYGEN II THE ACCESS TO OXYGEN III THE FORCES ACTING IN THE TRANSPORT OF OXYGEN (AND C02) THROUGH LIVING TISSUES IV RESPIRATION IN WATER ν EMERGENCY RESPIRATION THE TRANSITION TO AIR-BREATHING VI RESPIRATION IN AIR VII THE RESPIRATORY FUNCTIONS OF BLOOD VIII TRACHEAL RESPIRATION IX CONCLUDING REMARKS LIST OF REFERENCES LIST OF ANIMALS