PART IV 
ILLUSTRATIONS. 
The illustrations herewith presented are to be con- 
sidered as an essential feature of this book, and are 
intended as an aid botli in the study of plant mor- 
phology (Part I) and in the study of the descriptions 
under crude drugs and of powdered drugs (Part II). 
LIST OF PLATES. 
Plate I. 
Organized Cell-Contents. 
Plate II. 
Starch Grains. 
Plate 1 1 1. 
Calcium-Oxalate Crystals. 
Plate IV. 
Forms of Cells. 
Plate V. 
Stone Cells. 
Plate VI. 
Sclerenehymatous Fibers. 
Plate VII. 
Outer Morphology of Roots and Stems. 
Plate VIII. 
Primary and Secondary Structure of Root of Pea. 
Plate IX. 
Developed Secondary Structure of Root of Pea. 
Plate X. 
Section of Convallaria showing Monocotyledonous 
Stem Structure. 
Plate XI. 
Section of Menispermum showing Dicotyledonous 
Stem Structure. 
Plate XII. 
Outer and Inner Morphology of the Leaf. 
Plate XIII. . 
Non-secretion Hairs. 
Plate XIV 
Secretion Hairs. 
Plate XV. 
Outer and Inner Morphology of the Flower. 
Plate XVI. 
Outer and Inner Morphology of the Flower and 
Fruit. 
Plate X VII. 
Outer and Inner Morphology of the Fruit and 
Seed. 
