TABLE OF CONTENTS. 



CHAPTER I. 



Yeast Structure of the Vegetable cell Keproduction Nutrition- 

 Fermentation Spirogyra Chloroplasts Assimilation of carbon Cells 

 from Tradescantia, Elodea, Sambucus, Ranunculus Protoplasmic circu- 

 lation pp. 1 13. 



CHAPTER II. 



Reserve materials Seeds of the Bean and the Gourd Germination 

 Seedlings Tuber of the Potato and of the Jerusalem artichoke Starch 

 Bulb of the Tulip pp. 1432. 



CHAPTER III. 



The root Geotropism as a phenomenon of stimulation Structure of 

 the root Conception of tissues Vascular Cylinder Root-cap Growing 

 point Meristem Histology of vascular tissues Secondary roots Root- 

 hairs pp. 33 48 



CHAPTER IY. 



Stem structures Sunflower and Jerusalem artichoke Morphology 

 Histology Transverse and longitudinal sections Vascular tissue Struc- 

 ture of pitted cell-walls Cambium Cortex . . . pp. 49 64. 



