SYSTEMATIC SYNTHESIS OF ORGANS INTO APP. 383 



is CHIEFLY OF USE in regulating the flow of Blood in 

 accordance with the need of parts. 



1225. Illus. When cold first acts on the skin of a healthy person, 

 it is blanched for an instant, then flushed. 



1226. THE DESIRED OBJECT CAN BE GAINED by en- 

 largement of the capillaries of a part, and by a more 

 rapid motion of the Blood through them. 



1227. The degree of perfection, and THE ENDURANCE 



WITH WHICH THE CIRCULATION CAN BE REGULATED, WILL 



DEPEND upon the constitution and health of the person. 



' 1228. Illus. A person was observed in Vermont sitting still in very 

 cold weather out doors, and perspiring freely though thinly clad. He 

 said he never felt cold. A man, fatigued by labor, came out of the 

 woods, was struck by a cold blast, and fell from his load dead before he 

 had time to speak. 



1229. Remark. It is not THE CONTRAST OF COMING FROM A WARM 

 ROOM, nor because a person is hot, that causes him to take cold when 

 coming into cold fresh air ; but the bad air of the room has exhausted 

 him, and the cold is taken before he leaves the warm room. Let him 

 clothe warmly and breathe the fresh air as speedily as possible. 



1230. ONE OF THE MOST IMPORTANT LAWS OF HEALTH 

 is, preserve an equable circulation of Blood in the body, 

 especially in the skin. 



1231. Remark. It has been said that if a person should keep his 

 head cool, the skin warm, the bowels daily active, and a clear conscience, 

 he would live forever. Nobody has disproved it. 



1232. Inf. IF A PERSON is EXHAUSTED by fatigue, sickness, loss 

 of sleep, or in any manner, it MUST BE EVIDENT that reaction cannot 

 take place energetically nor for any considerable length of time, and 

 that therefore he should not then expose the skin to the cold ; that if he 

 has been exercising vigorously and sits in a breeze, especially if his skin 

 or clothing is moist with perspiration or otherwise, his health is endan- 

 gered ; that he should not bathe with cold water when fatigued, etc. 



1233. To SUSTAIN A LARGE CIRCULATION OF BLOOD 



THROUGH ANY PART, the temporary action of the stimu- 

 lated nervous centres must not be relied upon ; but by 



1225. Effect of cold? 1226. How can -? 122T. On what will -? 1228. Illus. 

 1229. What said ? 1230. What ? 1232. What ? 1233. What necessary ? 



