CHAPTER III

THE INTERNAL FACTORS OF REGENERATION IN ANIMALS

Polarity and Heteromorphosis 38 Lateral Regeneration 43 Regeneration from an Oblique Surface 44 The Influence of Internal Organs at the Cut-surface 52 The Influence of the Amount of New Material 54 The Influence of the Old Parts on the New 62 The Influence of the Nucleus on Regeneration 65 The Closing in of Cut-edges 69