CONTENTS 



Section 6-5 

 6-6, 

 67, 

 6-8 



6-9 



Water-content and Growth-rate page 883 



Water-absorption and the Evolution of the Terrestrial Egg 889 



Water-metabolism in Aquatic Eggs 906 



The Chemical Constitution of the Embryonic Body in Birds 9 1 1 



and Mammals 



Absorption-mechanisms and Absorption-intensity 9 1 7 



6- 10. Storage and Combustion; the Plastic Efficiency Coefficient 934 



6-1 1. Metabolism of the Avian Spare Yolk 939 



6-12. Maternal Diet and Embryonic Constitution 943 

 Section 7. TheEnergeticsandEnergy-sourcesof EmbryonicDevelopment 946 



7-1. The Energy Lost from the Egg during Development 946 



7-2. Energy of Growth and Energy of Differentiation 956 



7-3. The Relation between Energy Lost and Energy Stored 962 



7-4. Real Energetic Efficiency 969 



7-5. Apparent Energetic Efficiency 972 



7-6. Synthetic Energetic Efficiency 9^^ 



77. The Sources of the Energy Lost from the Egg 986 



Sections. Carbohydrate Metabolism 1000 



8-1. General Observations on the Avian Egg lOOO 



8-2. Total Carbohydrate, Free Glucose, and Glycogen lOOi 



8-3. Ovomucoid and Combined Glucose 1007 



8-4. Carbohydrate and Fat 1014 



8-5. The Metabolism of Glycogen and the Transitory Liver 1018 



8-6. Free Glucose, Glycogen, and Insulin in the Embryonic Body IO29 



87. General Scheme ofCarbohydrate Metabolism in the Avian Egg IO35 



8-8. Embryonic Tissue Glycogen 1036 



8*9. Embryonic Blood Sugar 1039 



8- ID. Carbohydrate Metabolism in Amphibian Development 1043 



8-1 1. Carbohydrate Metabolism of Invertebrate Eggs I047 



8-12. Pentoses 1 05 1 



8-13. Lactic Acid 1 05 1 



8-14. Fructose I054 



Section 9. Protein Metabolism 1055 



9-1. The Structure of the Avian Egg-proteins before and after IO55 



Development 



9-2. Metabolism of the Individual Amino-Acids 1059 



9-3. The Relations between Protein and non-Protein Nitrogen 1065 



9-4. The Accumulation of Nitrogenous Waste Products 1076 



