x CO NTH NTS. 



PACH-: 



298. The chemical characters of serous fluids . . . . -i'.i'.i 



S --".19. The characters of chyle ..... . !'.''. 



77-. mow ut'-iit* nf L'/ii/j'/i. 



300. The causes which maintain th flow of lymph ..... 500 



s :<ol. The iiiflaenoe of the nervous system on the flow of lymph . . 502 

 $ 302. The phenomena of transudation. The relation of trausuilation to 



tiltnitinii and ilitYusiou ......... Mi;; 



S 303. (Edema or dropsy ; its causes ........ 507 



$ .'!i)4. The structure and functions of lymph-hearts ..... 509 



SECTION XI. 



Al:>'>lU'TI"N KUiiM Till; AlIMKNTAKY ( \\N\I. 



305. The main products of digestion, and the two paths of absorption 



open for them .......... 511 



77,, ('"'//. t'lk'K )>ii (/> teveral 



306. The course taken l.y tlic futs . . . .512 



307. The oonrae taken by water and Balte ....... 513 



S 308. The course taken liy sugar ........ 513 



309. The course taken by proteids .... ... 514 



' 



310. The mechanism of the absorption of the fats ..... 516 



S 311. The pumping action of the villi ....... 519 



mechanism of the absorption of diffusible substances and of 

 watiT. Illations of the process to diffusion. Action of the 



cells ............ 520 



313. The two stages of the act of absorption ; their nature . . . 524 



CHAPTER II. 

 RESPIRATION. 



SECTION I. 

 THE STRUCTURE OF THE LUNGS AND THE BRONCHIAL PASSAGES. 



314. The function of the lungs chiefly mechanical 526 



315. The structure of the lung of the newt 527 



316. The structure of the lung of the frog 528 



317. The general structure of the mammalian lung : bronchia, bronchioles, 



infundibula and alveoli 529 



318. The structure of an mfundibulum 530 



j; 319. The structure of the trachea and bronchi 530 



320. The structure of the bronchia and bronchioles .... 532 



321. The structure of the alveoli . . 532 



322. The lymphatics of the lungs 533 



323. The nerves of the lungs 534 



