xxiv CONTENTS. 



Secretion by the Renal Epithelium. 



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 nitration 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 545 



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 650 



Cutaneous Respiration. 



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



varnishing the skin 552 



352. Absorption by the skin 653 



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 556 



354. The sweat-nerves, their origin and course 667 



355. Inhibitory sweat-nerves 668 



