PR()IMJ:M 219 277 



Note. — immunity is usually meant when the Ixwiy (irvdfjps certain HubHtfincca 

 in the blood known as antibodies. These substanceM seem to give to the Inxly the 

 power to r(>sist the work of genns that entir it. Natural immunity is only po»»il)lf 

 when the bodily condition is good. 



Of what use to the body in this respect would Ix' {.^ood food, rest, 

 sleep, and moderate exercise? Take each factor separately in your 

 discussion. 



What might the colorless corpuscles do to help in tliis gaining of 

 immunity ? 



Note. — Artificial immunity to certain disea.ses is brousht alxjut in the lx>dy l)y 

 the introduction of antitoxins into the body. These s<ibstanees finht the efTei-t** of 

 the toxins formed in the body by the Ixicteria of certain disea.'<es. Diphtheria i.s 

 one disease so fought. See your local board of health re|>orfs for u statement of 

 the preparation and distribution of this antitoxin. 



Do you know of any diseases that are fought succe.«^sfully by 

 antitoxins? (Read Civic Biology, pages 300-303.) What great 

 names are connected with the antitoxin treat ukmU of disease? 

 (See Civic Biology, pages 391, 402, etc.) How are antitoxins ad- 

 ministered? Why in this manner? Look uj) tlic .subject of 

 vaccination in Civic Biology, pages 157 and 301. Who discovered 

 this method of treatment of disease? To wliat disea.ses is it 

 applied? Are there any other artificial means of developing 

 immunity in the human body ? 



Conclusion. — Write a short composition discussing all the 

 ways of developing immunity in the human body. 



General Conclusion. — 1. What are the functions of the 

 board of health in any city? 



2. How may I cooperate with them in their work for the com- 

 mon welfare? 



3. How may I develop immunity? 



Problem 249 : First aid in. tJie Iwmr. ,4 siutimary nf ivluit 

 to do and how to do it. 



Thf: FiHftT-Aii) 1:mi:iigency Mkdicink Chkst 



Every family should iia\f the following materials in fix- medieino 

 cabinet out of rcdcli of young children : 

 Alcohol, small bottle. 



