PREVENTION 8 1 



there are marked differences in both the morbid anatomy and 

 etiolog}-. For a comparison of the lesions and specific bacteria 

 of these two diseases see infectious leukaemia. 



§ 70. Prevention. Pasteur introduced a preventive 

 inoculation or vaccine for this disease. Kitt has found that 

 the eggs of fowls unknown to this disease possessed a sub- 

 stance somewhat similar to antitoxin. He immunized fowls 

 b}' injecting them subcutaneously with from four to eight 

 cubic centimeters of the white of such eggs. While exceed- 

 ingly interesting this method does not seem practicable. 

 Good sanitary conditions, isolation of the well from the sick 

 fowds and thorough disinfection seems to be the most satis- 

 factor}' procedure. It is important not to introduce the 

 disease with newly purchased fowls or to expose healthy ones 

 to the disease either at or in transportation to various poultry 

 exhibits. 



REFERENCES. 



1. HiGGiNS. Notes on an epidemic of fowl cholera and upon the 

 comparative production of acid by allied bacteria. Jour, of Experi- 

 mental Medicine. Vol. III. (1S98J p. 651. 



2. Perroncito. Arch, fur wiss.pi-ackt. Thierheilktinde. 1879. p. 9. 

 3 Pasteur. De I'attenuation du virus du Cholera der poules. 



Compies Rendus des Seances de V Academic des Sciences. iSSo. \'ol. 

 XCI. p. 673. 



4. Pasteur. Sur les maladies virulentes, et en particulier sur la 

 maladie appelee vulgairement cholera des poules. Ibid. 1880. Vol. 

 XC. p. 239. 



5. Salmon. Annual Reports of the U. S. Commissioner of Agri. 

 culture. iSSo. - 82. 



6. Salmon. The diseases of poultry. Washington, D. C. 1899. 

 p. 232. 



ANTHRAX. 



Synonyms. Splenic fever ; splenic apoplexy ; wool 

 sorters' disease ; malignant pustule ; anthracaemia ; charbon ; 

 mal-de-rote; ; Milzh'and ; mycosis intestinalis. 



§ 71. Characterization. Anthrax is an infectious 

 disease occurring sporadically and is epizootics in herbivora 

 and omnivora and communicable to nearly all warm-blooded 

 .animals, and to man. It is characterized by the presence in 



