Streptotrichoses, Farcy of Cattle. 667 



of abscesses which do not contain these structures. In horses, asses 

 and cattle intravenous injection is followed by phlebitis and thrombus 

 formation while subcutaneous injection of these animals as well as 

 of sheep is followed by abscess formation. In cattle and sheep these 

 abscesses contain the characteristic colonies while in horses only a few 

 bacilli are present. In these animals as well as in dogs, cats and swine 

 intravenous injections are followed by symptoms of intoxication, other- 

 wise, however, cultures are only slightly pathogenic for the last named 

 species of animals. They are non-pathogenic for raljbits, white rats 

 and mice. 



Although feeding experiments have not given positive results it 

 seems that natural infection results from the digestive tract. The 

 bacteria are probably aided in their entrance into the tissues by particles 

 of vegetation to which they adhere. In general, the contagiousness 

 of the disease is only very slight and extensive outbreaks occur only 

 under certain favorable conditions as, for instance, after an outbreak 

 of foot and mouth disease. 



Iodine treatment has been found effective in many cases of soft 

 tumors. Preventive treatment consists of the destruction of badly 

 infected animals and isolation of the milder cases. Recovery from 

 the disease does not produce immunity to a second infection. 



Literature. Lignieres & Spitz, Aetinobacillose. Buenos Aires, 1902; Bull., 

 1902. 450. — Noeard, Bull., 1902. 695. — Higgins, Canad. Dept. Agric. Biol. 

 Labor. Bull., No. 1. — Petit, Bull., 1905. 268. 



5. Streptotrichoses. 



(Atypical Actinomylcoses ; Pseudoactinomyhosis , Actino- 



phytosis.) 



The term streptotrichoses is usually applied to morbid 

 processes produced by fungi that resemble aetinomyces, in so 

 far as they consist of thread-like filaments undergoing true 

 branching, as well as in their wavy growth, and their propaga- 

 tion by means of division as well as spore formation, but which 

 differ from aetinomyces in that they do not form actiniform 

 colonies. 



The morbid processes belonging to this group are generally 

 characterized by chronic suppuration. 



Literature, s. in Petruschky, Hb. f. p. M., 1903. II. 832. 



(a) Farcy of Cattle. Lymphangioitis Farciminosa Bovis. 



(Farcin du boeuf [French].) 



This is a chronic infectious disease of cattle caused by 

 a species of streptothrix and characterized by purulent inflam- 

 mation of the superficial lymph glands and lymph vessels. 



History Lymphangioitis farciminosa bovis was first described by 

 Sorillon (1829) and was formerly observed frerjuently in Prance. In 



