CONTENTS 



Section 4-4. Heat Production and Calorific Quotients of Echinoderm page 649 



Embryos 

 4-5. Respiration of Annelid, Nematode, Rotifer, and Mollusc 659 



Embryos 

 4-6. Respiration of Fish Embryos 

 4-7. Respiration of Amphibian Embryos 

 4*8. Heat-production of Amphibian Embryos 

 4-9. Respiration of Insect Embryos 

 4-10. Respiration of Reptile Embryos 

 4-11. Respiration of Avian Embryos in General 

 4-12. Heat-production of Avian Embryos 

 4-13. Later Work on the Chick's Respiratory Exchange 

 4-14. The Air-space and the Shell 

 4-15. Respiration of Mammalian Embryos 



4-16. Heat-production of Mammalian Embryos 



4-17. Anaerobiosis in Embryonic Life 



4-18. Metabolic Rate in Embryonic Life 



4-19. Respiratory Intensity of Embryonic Cells in vitro 



4'20. Embryonic Tissue-respiration and Glycolysis 



4-2 1 . The Genesis of Heat Regulation 



4-22. Light-production in Embryonic Life 



Section 5. Biophysical Phenomena in Ontogenesis 

 5-1. The Osmotic Pressure of Amphibian Eggs 

 5-2. The Genesis of Volume Regulation 

 ,^ 5-3. The Osmotic Pressure of Aquatic Arthropod Eggs 

 5-4. The Osmotic Pressure of Fish Eggs 

 5-5. Osmotic Pressure and Electrical Conductivity in Worm and 



Echinoderm Eggs 

 5-6. The Osmotic Pressure of Terrestrial Eggs 

 5-7. Specific Gravity 

 5-8. Potential Differences, Electrical Resistance, Blaze Currents 



and Cataphoresis 

 5-9. Refractive Index, Surface Tension and Viscosity 



Section 6. General Metabolism of the Embryo 

 6-1. The ^H of Aquatic Eggs 

 6-2. The />H of Terrestrial Eggs 

 6-3. rH in Embryonic Life 

 6-4. Water-metabolism of the Avian Egg 



665 

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693 

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719 

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732 

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777 

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790 

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812 

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833 



839 

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870 



