INDEX 



179 



Thermal death point, 28. 

 Thermogenic bacteria, 43. 

 Tick, 157. 

 Toxaemia, 49. 

 Toxins, 44, 120. 

 Transmission of infection, 51. 

 Treponema pallidum, 81. 

 Trypanosomes, 157. 

 Tsetse-fly disease, 157. 

 Tuberculin, 96. 

 Tuberculosis, 85. 

 Typhoid fever, 108. 



Ulcerative endocarditis, 68. 



Vaccination, 116, 152, 163. 

 Venereal diseases, 76. 

 Virulence, 48, 66. 



Whooping cough, 169. 

 Widal reaction, 65, 115. 



Yellow fever, 169. 



Printed in the United States of America. 



