CONTENTS OF VOL. II. 



PART IV. MORPHOLOGICAL DEVELOPMENT. 



CHAP. PAGE 



I. THE PROBLEMS OF MORPHOLOGY . 3 



II. THE MORPHOLOGICAL COMPOSITION OF PLANTS . 10 



III. THE MORPHOLOGICAL COMPOSITION OF PLANTS, 



CONTINUED . . . . . . .28 



IV. THE MORPHOLOGICAL COMPOSITION OF ANIMALS . 77 



V. THE MORPHOLOGICAL COMPOSITION OF ANIMALS, 



CONTINUED . . . . . . .09 



VI. MORPHOLOGICAL DIFFERENTIATION IN PLANTS . 113 



VII. THE GENERAL SHAPES OF PLANTS . . .119 



VIII. THE SHAPES OF BRANCHES ..... 130 



IX. THE SHAPES OF LEAVES 137 



X. THE SHAPES OF FLOWERS . . . . .14:6 



XL THE SHAPES OF VEGETAL CELLS . . . 159 



XII. CHANGES OF SHAPE OTHERWISE CAUSED . . 102 



XIII. MORPHOLOGICAL DIFFERENTIATION IN ANIMALS . 106 



XIV. THE GENERAL SHAPES OF ANIMALS . . . 109 



XV. THE SHAPES OF VERTEBRATE SKELETONS . . 192 



XVI. THE SHAPES OF ANIMAL CELLS . . . .210 



XVII. SUMMARY OF MORPHOLOGICAL DEVELOPMENT . 213 



PART V. PHYSIOLOGICAL DEVELOPMENT. 



I. THE PROBLEMS OF PHYSIOLOGY .... 221 



II. DIFFERENTIATIONS BETWEEN THE OUTER AND IN 

 NER TISSUES OF PLANTS .... 220 



III. DIFFERENTIATIONS AMONG THE OUTER TISSUES OF 



PLANTS ....... 2-13 



IV. DIFFERENTIATIONS AMONG THE INNER TISSUES OF 



PLANTS . . . . . . .252 



V. PHYSIOLOGICAL INTEGRATION IN PLANTS . .275 



vii 



