x 



CHAPTER 



CONTENTS 



ternal defenses. Internal defenses. Im- 

 munity. Active and passive immunity. 

 Persistence of immunity. Exit of organisms 

 from the body. Necessity for correct diag- 

 nosis 



XX ANTHRAX, BLACKLEG, HEMORRHAGIC SEPTICEMIA, 



AND CORN-STALK DISEASE 252 



Anthrax. Infection. Symptoms. Lesions. 

 Vaccination. Disposal of carcasses. An- 

 thrax in man. Blackleg. Symptoms. Vac- 

 cination. Hemorrhagic septicemia. Corn- 

 stalk disease 



XXI TUBERCULOSIS 269 



Animals affected. Distribution. The tu- 

 bercle bacillus. Infection. Lesions. Distri- 

 bution of the tubercle bacillus. Infection of 

 the herd. Detection of tuberculosis. Free- 

 ing the herd from tuberculosis. Vaccina- 

 tion. Tuberculosis of hogs. Avian tubercu- 

 losis. Johne's disease 



XXII TEXAS FEVER, CONTAGIOUS ABORTION, AND FOOT- 

 AND-MOUTH DISEASE 295 



Texas fever. Eradication. Immunization. 

 Contagious abortion. Detection. Control, 

 and prevention. Foot-and-Mouth disease. 

 Nature of the disease 



XXIII RABIES AND ACTINOMYCOSIS 311 



Rabies. Symptoms. Diagnosis. Preventive, 

 treatment. Actinomycosis. Symptoms. 

 Treatment 



XXIV GLANDERS AND TETANUS . 320 



Glanders. Distribution. Symptoms. De- 

 tection. Tetanus. Symptoms. Preventive 

 measures 



