SUMMARY AND REVIEW. 
IV. —What do you understand by “period of 
incubation?” “Seat of invasion?” 
V. —Explain the conditions under which symp¬ 
toms of diseases due to bacteria arise ? 
VI. —What becomes of the invading- germs if 
overcome by the phagocytes ? 
VII. —How do bacteria work their own de¬ 
struction ? 
VIII. —In what other way may their multipli¬ 
cation within the body be arrested, and their death 
result ? 
IX. —Describe antitoxins in detail, their devel¬ 
opment and use? What -effects should be ex¬ 
pected to follow the antitoxin treatment? 
X. —What is Koch’s germ theory? Describe 
the complete circuit in detail. 
4i 
