PHYSIOLOGY. 409 



CHAPTER VI. 



305. What part of the oxygen of the air does one respiration con- 

 sume ? 



306. Will a second respiration, and a third, consume each another 

 fourth ? 



307. Give an illustration. 



308. Will any other proportion of oxygen, than that which is in pure 

 air answer ? 



309. What besides the loss of oxygen unfits the air for a second res- 

 piration? 



310. What is the limit of the capacity of air to remove offending 

 matter from the lungs ? 



311. 312. Illustrate. 



313. What is removed from the lungs besides carbon? 



314. In what three ways is air vitiated? 



CHAPTER VII. 



315. How does temperature of the air affect the removal of waste ' 



316. What sensations are experienced in warm weather? Why? 



317. .How does mountain air affect breathing? 



318. What impurities in some mines? What their effect? 



319. Does the state of the system affect the removal of waste ? 



320. How do diseases of the lungs impair respiration? 



321. What occurs in lung fever and some other diseases? 



322. What effect have mental states ? 



CHAPTER VIII. 



323. What does respiration imply in regard to the chest ? 



324. What organs are passive in respiration ? 



325. 326. What apparatus is active, and how does it act ? 

 327, 328. How may the motions of the ribs be impeded? 



329, 330, 331. How may the motions of the diaphragm be impeded ? 



CHAPTER IX. 



332. What is the natural principle of beauty ? What the ideal ? 



333. What is the relation of the chest to the body ? 



334. What principle of utility is to be considered in the size of the 

 chest? 



335. What is live real standard of beauty of the chest and wa:st ? 



336. When do we find the waist of natural shape ? What is it? 



337. What is the effect of close and small dresses on the chest / 



338. What upon respiration ? 



339. 340. How does pressure affect the bony frame ? The ribs ? 



CHAPTER X. 



341. What disorders may impede the action of the diaphragm? 



342. What is the average number of respirations in a minute 7 



35 



