ILLUSTRATIONS. I 5 



FIG. PAGE 



261. Median longitudinal section of adult human kidney 325 



262. Section of cortical substance of human kidney 326 



263. Section of proximal convoluted tubules from man ............ 327 



264. Epithelium from proximal convoluted tubule of guinea-pig, with surface and 



lateral views 3 2 ^ 



265. Cortical portion of longitudinal section of kidney of child (Huber) 328 



266. Section of medulla of human kidney ... 329 



267 Longitudinal section through papilla of injected kidney 330 



268. Section through junction of two lobules of kidney 331 



269. Diagrammatic scheme of uriniferous tubules and blood-vessels of kidney . 333 



270. Direct anastomosis between an artery and vein in a column of Berlin of child 335 



271. Section of lower part of human ureter . . . 337 



272. Transverse section of the wall of the human bladder, giving a general view 



of its structure 338 



273. Section of suprarenal cortex of dog 340 



274. Arrangement of intrinsic blood-vessels in cortex and medulla of dog's adrenal 



(Flint) 341 



275. Section from ovary of adult dog (Waldeyer) 345 



276. Section from ovary of young girl 340 



277-280. Sections from cat's ovary 348 



281. Transverse section through the cortex of a human ovary 349 



282. Representation of behavior of the chromatin during the maturation of the 



ovum (Ruckert) 351 



283. Scheme of the development and maturation of an ascaris ovum (Boveri) . . 352 



284. Section of oviduct of young woman 355 



285. Section from uterus of young woman 357 



286. Section of human vagina (Huber) 358 



287. Section of human labia minora (Huber) 359 



288. Diagram showing the characteristics of spermatozoa of vertebrates 361 



289. Human spermatozoa . . 362 



290. Longitudinal section through human testis and epididymis 363 



291. 292. Sustentacular cells 364 



293. Section of human testis (Huber) 365 



294. Section through human vasa efferentia 366 



295. Cross-section of vas epididymidis of human testis (Huber) 366 



296. Section of dog's testis with injected blood-vessels 367 



297. Cross-section of vas deferens near epididymis (human) (Huber) 368 



298. Cross-section of wall of seminal vesicle (human) (Huber) 369 



299. vSection of prostrate gland of man (Huber) 369 



300. Schematic diagram of spermatogenesis as it occurs in ascaris (Boveri) .... 373 



301. Schematic diagram of section through convoluted seminiferous tubule of 



mammal (Hermann) . 375 



302. Section of convoluted tubule from rat's testicle 376 



303. Under surface of the epidermis . 380 



304. Cross-section of skin of child with injected blood-vessels 381 



305. Prickle cells from the stratum Malpighii of man .' 382 



306. Cross-section of human epidermis 383 



307. Cross-section of negro's skin 384 



308. A reconstruction, showing the arrangement of the blood-vessels in the skin of 



the sole of the foot (Spaltcholz) 385 



309. Nerves of epidermis and papillae from ball of cat's foot 386 



310. 311. Meissner's corpuscle from man 387 



312. Grandry's corpuscles from duck's bill 388 



313. Transverse section of human scalp . . 390 



314. Longitudinal section of human hair and follicle 391 



315. Cross-section of human hair with follicle 392 



316. Longitudinal section of cat's hair and follicle, showing nerve-termination . . 393 



317. Longitudinal section through human nail and its groove 394 



318. Transverse section through human nail and its sulcus 395 



319. Coiled portion of a sweat-gland from the plantar region of a man, reconstructed 



by Born's wax-plate method (Huber Adamson) 396 



320. Cross-section of coiled tubule of sweat-glands from human axilla . . . . 396 



321. Tangential section through coiled tubule of sweat-glands from human axilla 397 



322. Sebaceous gland with a portion of the hair follicle, reconstructed by Born's 



wax-plate method 398 



