CONTEXTS 



PART I.— THE ANATOMY OF PLANTS 



CH-VPIER I'AGE 



I. The Structure and Physiology of the Plant- 

 cell ........ I 



II. Growing Points and Cell-division . . . i6 



III. The Differentiation of Plant-cells . . 27 



I\'. The Non-lia'ing Contents of Cells. . . 40 



V. Cell-contents (By-products, etc.) ... 58 



VI. The Structure of Roots .... 65 



VII. The Structure of the Young Stem . . 76 



\'III. The Epiderjiis. ...... 91 



IX. The Structure of the Leaf .... 107 



X. Secondary Thickening ..... 117 



XI. Cork-formation, etc. ..... 135 



XII. Secretory Organs 144 



XIII. ANATOMY IN Relation to the Habitat . . 15S 



vii 



