514 Typhoid Fever 



formation of an immune body only. The immune body is 

 useless unless it be accompanied by the corresponding com- 

 plementary body, and it is only by the use of some prepara- 

 tion containing the proper relative proportion of both 

 substances that bacteriolysis with a favorable influence upon 

 the course of the fever, is possible. At present we have 

 no means of increasing the complementary body. 



