SUMMARY AND REVIEW. 

 SUMMARY OF CHAPTER IV. 



Parkes' list of diseases due to bacterial in- 

 vasion. How they are communicable. 



Authorities have different opinions on this 

 point. 



Manner in which bacteria gain an entrance 

 to the human structure. 



The periods of incubation, invasion and de- 

 velopment of disease if the bacteria are not 

 overcome by the phagocytes. 



How infection is thrown off from the healthy 

 body. 



Death of bacteria through lack of nourish- 

 ment and other causes. 



Immunity: Natural, acquired, artificial and 

 definitions. 



The opsonic theory. 



Antitoxins : Where they are obtained and 

 how they are prepared. 



Koch's Circuit. 



QUESTIONS FOR REVIEW. CHAPTER IV. 



I. — How are diseases designated in the 

 classes mentioned? 



11. — Define inoculation. Surface lesion. 

 Air-borne. 



ni. — Mention channels through which in- 

 fection is communicated to the body. 



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