LIST OF ILLUSTRATIONS xvii 



FIGtTRE PAGE 



233. From a section of red marrow of a human bone .... 220 

 234. Types of cells from a smear preparation of the marrow of a human 



rib 221 



235. Subcutaneous lymphatic vessel of a fetal pig .... 227 



236. The growing end of a developing lymphatic vessel in the subcutane- 

 ous tissue of a fetal pig ...... v 228 



237. Lymphatic and blood vessels in the hilum of a human lymph node . 229 

 238. Lymphatic capillary from the spermatic cord of a dog, showing nerve 



endings 230 



239. Transection of the pericardium of a child 232 



240. Section of a vascular synovial villus from the knee joint of a 



child 233 



241. A lymph nodule, solitary follicle, from the large intestine of man . 234 



242. Diagrammatic illustration of a lymph node .... 236 



243. Transection of a cervical lymph node of a dog . . . . 237 



244. Transection of a mesenteric lymph node of a man . . . 237 



245. Diagram of the blood vessels of a lymph node .... 238 



246. Section of human hem^lymph node (" splenolymph gland ") . . 240 



247. Horizontal section through the faucial tonsil of a child . . . 241 



248. From a crypt of a dog's tonsil 243 



249. The lingual tonsil of man ... . .244 



250. Portion of spleen of cat, showing capsule (above and at left) and 



five splenic nodules . . . . . . ... 246 



251. Diagram of a lobule of the spleen ...... 247 



252. The origin of a vein in the splenic pulp .... . 248 



253. Types of cells from a smear preparation of the pulp of the human 



spleen ... 249 



254. Diagram of a mucous membrane having simple tubular glands . 252 



255. Diagrams of the principal types of glands 253 



256. Transection of three secreting tubules of the submaxillary gland of 



man ........... 255 



257. Model of a reconstruction of the lacrimal gland of man . . 258 

 258. Reconstruction of a mucous gland from the respiratory region of the 



nasal mucosa of a child ....... 259 



259. Reconstruction of an intralobular duct dividing into its terminal 



intercalary ducts and acini 259 



260. Epidermis of the foot . 263 



261. Section of thin skin from abdomen of negro, showing the distribu- 

 tion of the pigment granules in dermal and epidermal cells . 264 

 262. Section of thin skin from abdomen of light brown mulatto . . 264 

 263. Skin from sole of human foot, showing spiral ducts of two sweat 



glands opening through the epidermis ..... 266 



264. Transection of the epidermis of the foot , 267 



