VI CONTENTS. 



Page 



F. Liber Cells . . . . . . .64 



G. Milk Vessels ....... 64- 



H. Fibrous Tissue . . . . . . .68 



I. Epidermal Tissue . . . . .68 



a. Epidermis . . . . . . .68 



b. Appendicular Organs . . . . .69 



c. Cork ....... 69 



d. Root Sheath 69 



CHAPTER II. 



ON THE LIFE OF THE PLANT-CELL. 30 4:9. 



SECTION I. 



Functions of the Individual Cell . . . . .80 



I. On the Absorption of Foreign Agents . . . .80 



II. On the Assimilation of the absorbed Matters, and Secretion . 83 



III. Of the Excretion of Substances from the Plant- Cell . . 88 

 ]V. Disposition of the assimilated Matters . . . -89 



V. Motions of the Cell-contents . . . . .92 



VI. Motions of the Vegetable Cells . . . . .98 



VII. Reproduction of the Cell . . . . .102 



VIII. Of the Termination of Cell Life . . .104 



SECTION II. 



Life of the Cell in connection with others. 50-64 . . 106 



I. General Modification of the Life of Cells in consequence of the 



Association of several Cells . . . .107 



II. Peculiarities in the Life of entire Tissues . . . .110 



THIRD BOOK. 



MORPHOLOGY . . . .124 



CHAPTER I. 



GENERAL MORPHOLOGY. 66 77 . 1 W 



CHAPTER II. 



SPECIAL MORPHOLOGY. 78 182 . .138 



SECTION I. 



The Angiospora? . . . . . . . .143 



I. Algse ........ 145 



II. Fungi 151 



III. Lichenes (Lichens) . . . . . .157 



Appendix (Charae). . 162 



SECTION II. 



The Gymnosporae . . . . . . . .164 



A. Asexual Plants . . . . . .166 



a. Rootless Agamae. 



IV. Liverworts 168 



