LIST OF ILLUSTRATIONS 



VOL. I. 



FI<;. PAGE 



1. Amoeba proteus . . . . . ... . .10 



2. Amoeba polypodia, fission 13 



3. Alveolar theory of protoplasm . 15 



4. Reticular theory of protoplasm . . . . * . . . .16 



5. Diagrams illustrating karyokinesis 17 



6. Ovum of Sea-urchin . . . . . . . . . . .19 



7. Maturation and fertilisation of ovum . . . . . . .20 



8. Segmentation of ovum . 22 



9. Gastrulation . . . 22 



10. Gastrula . . . . . .23 



11. Various forms of epithelium ... . . . . . .24 



12. Diagram to illustrate structure of glands 25 



13. Gelatinous connective tissue . 26 



14. Reticular connective tissue . . . . . . . .26 



15. Fatty tissue . . . . . . 27 



16. Hyaline cartilage . . . . . . . . . . . . 27 



17. Fibro- cartilage . . . . . .27 



18. Bone 28 



19. Unstriped muscle 29 



20. Striped muscle . - 29 



21. Nerve-cells . . . . . . ... . . .30 



22. Nerve-fibres 30 



23. Various forms of spermatozoa 30 



24. Viscera of Frog .... . ' 33 



25. Bones of human arm with biceps muscle . . . . . .37 



26. Nervous system of Frog . . . . 38 



27. Hydra V . . . . 41 



28. Diagram of axes of body .'..-. . . . . . .42 



29. Radial symmetry . . . .42 



30. Amoeba, various species . . . . 47 



31. Protamoeba primitiva 49 



32. Quadrula, Hyalosphenia, Arcella, and Difflugia 49 



33. Microgromia socialis 59 



b 2 



