LIST OF ILLUSTRATIONS. xV 
FIa. PAGE. 
121, Aconitum Napellus, transverse and longitudinal section of root- 
lets, , . 204 
122. Helleborus viridis, trunavaris cians of ranaiaie, ‘i ‘ 205 
123. Sarsaparilla, radial longitudinal section, ‘ : . 206 
124. Vera-Cruz Sarsaparilla, transverse section. ‘ ‘ " 207 
125. Rhizoma Galange, transverse section, . F ‘ - 207 
126. Radix Sarsaparille, longitudinal section, : F ‘ 209 
127, 128. Eucalyptus globulus, transverse sections of leaf, . 210, 211 
129. Mentha piperita, transverse section of leaf, . ‘ . 212 
130. Leaf of Digitalis purpurea, ‘ ‘ . < . 214 
131, 132. Rhizoma Filicis maris, : ‘ 214 
133. Maize stem, transverse section through a collateral aaa, . 216 
134, Spiral and annular vessels from Bulbus Scille, A ei aEe 
135. Vessels from Rhizoma Filicis, ; ; : . . 218 
186. Longitudinal section of two tracheids, < é 219 
137, Lignum Quassic jamaicense, transverse section, ‘ . 219 
138. Schematic representation of the activity of a cambium cell, 221 
189, Libriform from Quassia wood, : é , ; . 222 
140. Cells of the medullary rays, ‘ ‘ < 224 
141. Medullary rays from Lignum Siniperi, : ‘ .- ae 
142. Rhubarb, tangential longitudinal section, 7 ‘ 225 
143, Wall-like cells of medullary rays from Lignum Juniper, - 226 
144. Stipes Dulcamare, one-rowed medullary rays, Fs 226 
145. Cinchona lancifolia, transverse section through the phloén,: 227 
146. Rheum Rhaponticum and true rhubarb, transverse sections, 298, 229 
147. Sieve-tubes from Fructus Papaveris, ‘ ; : - 230 
148. Sieve-tubes of Acer, 
149. Ceratonia Siliqua L., frauaveres iickions of bark, : . 232 
150. Bast-fibres from Cinchonns alba Payta, . 4 : 233° 
151. Rhizoma Calami, moniliform tissue, ‘. : » 236 
152. Fructus Aurantiorum, transverse section from the — 236 
153. Caryophyllus, transverse section, ‘ 237 
154. Mentha piperita, surface view of epidermis of ee . 238 
155. Mentha piperita, vertical section of a stoma, . 
156, 157, 158. Stomata from dicotyledons and monocotyledons, 
159, 160. Arillus of Myristica spec., cross section, . « . 
161. Cinnamomum Camphora, cross section through a sub-epider- 
mal oil-cell of leaf, . ‘ 
162. Aspidium Filia mas, fundamental tinstie of rhizome, = 
163, 164, 165. Radix Taraxaci, latex-tubes, = 4 . 246, 
. 
166. Tuber Jalape, cells containing laticiferous j juice, . 
167. Latex-tubes of the fig, i 
. . . . 
