574 TROPICAL HYGIENE, SANITATION, ETC. 



Swine fever, Swine tvphus, Pneumo-enteritis and Hog" cholera by 

 the examination of the lungs and intestine after death. 



Rinderpest by absence of abrasions of the mouth and tongue, con- 

 gestion with cheesy deposits on the throat and nostrils, crackling on 

 pressure in advanced stages. 



Pleuro-pneumonia by absence of hepatization of the lungs after 

 death. 



Tuberculosis by absence of small tubercles or caseous masses in the 

 lungs, on the pleurae, peritoneum, liver, kidneys, and without the 

 enlargement of the l\'mphatic glands of the carcase. 



Actinomycosis by the absence of the rav fungus (Streptothrix 

 actinomyces) about the upper and lower jaws and the nasal cavities. 

 There should be no interstitial inflammation of the tongue (woody 

 tongue). 



T^niasis by absence of cysticerca amongst the muscle fibres of the 

 carcase. 



Trichinosis by the absence of Trichinae spiralis in the flesh of 

 animals that destroy rats, such as pigs, &c. Each capsule ingested 

 gives rise to a brood of one or several hundred young trichinae. 



Coccidiosis of rabbits, cattle and sheep by the absence of the 

 psorosperms. The chief ones are Coocidium oviforme. They are 

 found about the bile ducts and intestines of carcases. 



Tuberculosis. — With regard to this vexed question the recom- 

 ynendations of the Royal Commission on Human and Animal Tuber- 

 culosis are : — 



The carcase, if otherwise healthy, shall not be condemned, but 

 every part of it containing tuberculous lesions shall be seized when — 



(i) The lesions are confined to the lungs and the thoracic Ivmphatio 

 glands. 



(2) The lesions are confined to the liver. 



(3) The lesions are confined to the pharyngeal lymphatic glands. 



(4) The lesions are confined to any combination of the foregoing, 

 but are collectively small in extent. 



The entire carcase and all the organs may be seized when — 

 (.1) There is miliary tuberculosis of both lungs. 



(2) Tuberculous lesions are present on the pleura or peritoneum. 



(3) Tuberculous lesions are present in the muscular system, or in 

 the lymphatic glands embedded in or between the muscles. 



(4) Tuberculous lesions exist in any part of an emaciated carcase. 



MEAT PRESERVATION. 



From ancient times certain methods and means have been adopted 

 for the preservation of meats, especially where all that in hand could 

 not be consumed within a reasonable time. 



