viii CONTENTS. 



CHAPTER III.— OUTER AND INNER MORPHOLOGY OF THE 



HIGHER PLANTS. 



Introductory = 298 



I. Outer Morphology of the Root 299 



Inner Structure of the Root 309 



II. Outer Morphology of the Stem 320 



Inner Structure of the Stem 338 



III. Outer Morphology of the Leaf 348 



Inner Structure of the Leaf 365 



IV. Outer Morphology of the Flower 374 



Inner Structure (Histology) of the Flower 402 



V. Outer Morphology of the Fruit 408 



Inner Structure of the Fruit 42 1 



VI. Outer Morphology of the Seed 423 



Inner Structure of the Seed 427 



CHAPTER IV.— BOTANICAL NOMENCLATURE. . . , 430 



CHAPTER v.— CLASSIFICATION OF ANGIOSPERMS YIELDING 

 ECONOMIC PRODUCTS. 



Introductory 463 



Monocotyledons 463 



Dicotyledons 501 



Archichlamydeae or Choripetalae 504 



Metachlamydeae or Sympetalae 643 



CHAPTER VI.— CULTIVATION OF MEDICINAL PLANTS 



Plants Grown from Seeds 728 



Propagation by Cutting 733 



Collecting and Drying of Drugs 737 



Relative Value of Drugs from Cultivated and Wild Plants. . . . 739 

 Progress in the United States 744 



CHAPTER VII.— MICROSCOPIC TECHNIQUE AND REAGENTS. 



Making of Sections 749 



Practical Suggestions 751 



Micrometry or Microscopic Measurement 754 



Reagents 755 



Effects of Important Micro-Chemical Reagents 759 



The Micro-Polariscope 764 



The Spectroscope in Microscopic Analytical Work 764 



Dark Field Illumination and the Ultra-Microscope 765 



Micro-Analysis 766 



