120 GENERAL ANALYSIS. 



servation, it would seem must be shrouded in impene- 

 trable mystery. 



447. IT EXCITES THE HIGHEST ADMIRATION AND 

 GRATITUDE to observe the results of the untiring labors 

 that have been bestowed upon research in this field, as- 

 sisted by a few fortunate accidents. 



448. THE WONDERFUL PROCESSES OF DIGESTION, of 

 such immense practical value to man, can now be under- 

 stood in all their most important and useful aspects by 

 an ordinary person with moderate application. There 

 is no occasion for the student to feel discouraged, as he 

 will be well satisfied when the process and organs are 

 treated upon in detail. 



SECTION IX. 

 Eliminatory Organs. 



449. THERE is A HARMONY between the constitu- 

 tion of Nature generally and that of the Human Body, 

 that when perceived cannot fail to excite the liveliest 

 feelings of admiration and enlist the deepest interest. 

 This harmony is especially recognized in the study of 

 the relations of the function of Elimination. 



450. THE LUNGS are important Eliminators of Car- 

 bon in the form of carbonic acid ; but when hot weather 

 rarefies the air and elevates its temperature, the action 

 of the Lungs is correspondingly limited, for less air en- 

 ters them at each breath, and it is so nearly the tempera- 

 ture of those organs that it is but slightly expanded in 

 them, and does not therefore distend them to the degree 

 most highly promoting the action of the air and blood 

 upon each other, and the blood returns from the Lungs 

 but partially relieved of carbon. 



451. Inf. IN HOT WEATHER, little heat should be 

 produced in the Body, so that a feeble action of the 

 Lungs is desirable at that time. 



447. What ? 448. What said of ? 449. Where ? 450. What are ? 

 451. What should be ? 



