LIST OF ILLUSTRATIONS 



PAGE 



1. Skull and Vertebral Column of Frog ... 25 



2. Shoulder Girdle of P>og . .... 29 



3. Fore Limb of Frog . . . . .31 



4. Hind Limb of Frog ..... 34 



5. Typical Fore and Hind Limbs of Pentadactyle Vertebrate 36 



6. Tranverse Section of Body of Frog 39 



7. Heart and Truncus Arteriosus of Frog . . 47 



8. Arteries of Frog. ... .50 



9. Venous System of Frog ..... S3 



10. Spinal and Sympathetic Nerves of Frog . . 59 



11. Brain and Cranial Nerves of Frog ... 64 



12. Right Membranous Labyrinth of Frog's Ear . . 70 



13. Red and White Blood Corpuscles of Frog and Man . 74 



14. Stratified, Pavement, Ciliated, and Columnar Epithelia 84 



15. Sensory Epithelia ..... 89 



16. Nerve Ganglion Cells and Nerve-Fibre . . . 91 



17. Unstriped Muscle- Fibre . 95 



18. Embryonic Striped Muscle-Fibre and Cardiac Muscle- 



Fibre 98 



19. Areolar Connective Tissue . v . . 100 



20. Hyaline Cartilage . . . . . 102 



21. Structure of Bone ..... 105 



22. Adipose Tissue ...... 108 



23. Diagrams of the Essential Phenomena of Mitosis . 113 



24. Spermatozoa of Frog . . . . .119 



25. Diagrams of the Essential Phenomena of Sperm ato- 



genesis ...... 121 



26. Fertilisation of the Amphibian Ovum . . . 124 



27. Segmentation of the Frog's Ovum . . .126 



28. Sections through segmenting Ovum of Frog . . 127 



