ILLUSTRATIONS. 13 



FIG PAGE 



134. Peripheral sensory neurone (Huber) 167 



135. Termination of sensory nerve-fibers in the mucosa and epithelium of urethra 



of cat (Huber) 168 



136. End-bulb of Krause from conjunctiva of man (Dogiel) 169 



137. Meissner's tactile corpuscle (Dogiel) . . 170 



138. Genital corpuscle -from glans penis of man (Dogiel) 171 



139. Cylindric end-bulb of Krause from intermuscular fibrous tissue septum of cat 



(Huber) 172 



140. Vater-Pacinian corpuscle from the mesentery of a cat 173 



141. Pacinian corpuscles from the mesorectum of a kitten (Sala) 174 



142. Corpuscle of Herbst from bill of duck 175 



143. Intrafusal muscle-fiber from neuromuscular nerve end-organ of rabbit (Huber) 176 



144. Cross-section of a neuromuscular nerve end-organ from interosseous muscle of 



man (Huber) ... ... ... . 176 



145. Neuromuscular nerve end-organ from plantar muscles of dog ( Huber-De Witt) 177 



146. Neurotendinous nerve end-organ from rabbit (Huber-De Witt) 178 



147. Cross-section of neurotendinous nerve end-organ of rabbit (Huber-De Witt) . 179 



148. Ranvier's crosses from sciatic nerve of rabbit 181 



149. Medullated nerve-fiber from sciatic nerve of frog 181 



150. Ganglion cell from anterior horn of spinal cord of calf 182 



151. Human red blood-cells 188 



152. Rouleau formation of human erythrocytes 1 88 



153. Hemin, or Teichmann's crystals, from blood stains on a cloth (Huber) . . . 188 



154. Crenated human red blood-cells 188 



155. Red blood-corpuscles subjected to the action of water 188 



156. Red blood-corpuscles from various vertebrate animals 189 



157. White blood-corpuscles from normal blood of man 191 



158. Ehrlich's leucocytic granules 192 



159. Fibrin from laryngeal vessel of child (Huber) 195 



160. Solitary lymph-nodule from human colon 197 



161. Transverse section of human cervical lymph-gland, showing the general struc- 



ture of a lymph-gland 198 



162. Section from human lymph-gland 199 



163. Section through the human spleen 203 



164. Lobule of the spleen (Mall) 205 



165. Cells containing pigment, blood-corpuscles, and hemic masses from spleen of 



dog 206 



1 66. Section through human spleen showing reticular fibrils 206 



167. Cover-glass preparation from bone-marrow of dog 208 



1 68. Section through human red bone-marrow ... 209 



169. Small lobule from thymus of child, well-developed cortex 211 



170. Hassall's corpuscle and a small portion of medullary substance from thymus 



of child ten days old (Huber) 211 



171. Cross-section of human carotid artery 217 



172. Section through human artery, one of the smaller of the medium-sized ... 217 



173. Precapillary vessels from mesentery of cat (Huber) 218 



174. Cross-section of human internal jugular vein 219 



175. Section of small human vein . . . 220 



176. Endothelial cells of capillary and precapillary from mesentery of rabbit (Huber) 221 



177. Small artery from oral submucosa of cat with nerve-terminations 222 



178. Section of a cell-ball from glomus caroticum of man , . 225 



1 79. Thoma-Zeiss hemocytometer 232 



180. Section through lower lip of man ... .... 237 



181. Longitudinal section through a human tooth, showing lines of Retzius . . . 239 



182. Portion of ground tooth from man, showing enamel and dentin .... 240 



183. Longitudinal section through human molar from the center of the enamel 



layer 241 



184. Cross-section of human tooth, showing cement and dentin 243 



185. Nerve termination in pulp of rabbit's molar (Huber) 244 



186-189. Four stages in the development of tooth in sheep embryo 245 



190. Portion of cross-section through developing tooth 246 



191. Fungiform papilla from human tongue (Huber) 247 



192. Cross-section of human tongue showing filiform papillae . . 248 



193. Longitudinal section of foliate papilla of rabbit, snowing taste-buds (Huber) 249 



194. Longitudinal section of a human circumvallate papilla 250 



