xxiv CONTENTS. 



Secretion by the Renal Epithelium. 



PAGB 



§ 336. The evidence of the secretory activity of the epithelium. Experi- 

 ments on amphibia. The results of injecting sulphindigotate of 



sodium 533 



§ 337. The nature of glomerular secretion; its relation to filtration and 



diffusion. Albuminous urine 535 



§ 338. The nature of the work of the epithelium as regards the secretion 



of urea 538 



§ 339. The formation of hippuric acid 539 



§ 340. The relations of the secretory activity of the kidney to the secretory 



activity of the skin 540 



§ 341. The relations of the secretion of urine to food and drink . . 541 



§ 342. Diuretics 542 



§ 343. Direct action of the nervous system on the kidney .... 543 



SECTION III. 



The Discharge of Urine. 



§ 344. The movements of the ureter 544 



Micturition. 



§ 345. The muscles of the bladder, their action, the nerves governing 



them ; the sphincter vesicae 645 



§ 346. The varying tone of the bladder 546 



§ 347. The general nervous mechanism of micturition .... 547 



§ 348. Involuntary and voluntary micturition 548 



§ 349. Changes of the urine during its stay in the bladder .... 549 



SECTION IV. 

 The Nature and Amount of Perspiration. 



§ 350. Sensible and insensible perspiration. The characters and constitu- 

 ents of sweat 550 



Cutaneous Respiration. 



§ 351. The nature and amount of cutaneous respiration. The effects of 



varnishing the skin 552 



§ 352. Absorption by the skin 553 



SECTION V. 



The Mechanism of the Secretion of Sweat. 



§ 353. The relation of sweating to vascular changes. The nervous mech- 

 anism of the sweat-glands 555 



§ 354. The sweat-nerves, their origin and course 557 



§ 355. Inhibitory sweat-nerves 558 



