164 ANNUAL REPORT OF THE OS. t)oc. 



4. The successful deuionstration of tubercle bacilli in the feces 

 or rectal scrapings of cattle is either j)r(K)f that extensive or "open" 

 lesions of tuberculosis exist, or an indication that tubercle bacilli 

 ingested are passing through the length of the alimentary canal of 

 the animal under examinatiim, 



5. Cattle with "open" lesions of tuberculosis, and throwing off 

 tubercle bacilli in the feces or rectal scrapings, as a rule, show physi- 

 cal symptoms of the disease. 



6. The demonstration of tubercle bacilli in the feces or rectal 

 scrapings of cattle apparently free of tuberculosis, but stabled with 

 highly infected cattle, may be accepted as an indication that tubercle 

 bacilli are passing through such cattle, — the tubercle bacilli being 

 ingested and thrown off in numbers large enough to be demonstrat- 

 able in the feces or rectal scrapings. 



7. Cattle showing physical symptoms of tuberculosis are the most 

 active disseminators of the disease, because of the probable existence 

 of "open" lesions, and the likelihood that tubercle bacilli are thrown 

 off in the excreta. Since they show physical symptoms, they may 

 be detected in a herd by a consideration of the history, careful ob 

 servation and a thorough examination of each animal. 



8. Tuberculin reacting cattle do not necessarily throw off tubercle 

 bacilli in the feces until the development of "open" lesions of tuber- 

 culosis, in which event, the condition may be detected by a considera- 

 tion of the history, careful observation and a complete physical ex- 

 amination. 



Glanders. Material collected from suspected cases of glanders 

 were received in the form of 78 specimens of which all but 5 were 

 examined. Of the 78 examined, the presence of bacillus, mallei was 

 demonstrated in 18, and in 55 the demonstration was not successful. 

 Only a few specimens of blood were included in the specimens re- 

 ceived, but the glanders agglutination test was not carried out in 

 a single instance during the entire year. 



Epizootic Lymphangitis. Fifteen specimens of pus were received 

 for examination and 5 of these did not include enough material to 

 make a satisfactory examination possible. The sacchromyces farci- 

 minous or sporothrix farciminosus was demonstrated in 10. Two 

 in which a diagnosis of epizootic lymphangitis was made, were from 

 horses in Philadelphia. In both of these instances the history of 

 these horses prove conclusively that they were not out of Philadel- 

 phia during the past 5 years. 



Anthrax. Twenty-five specimens were received for examination, 

 including 24 from cattle and 1 from a horse. These specimens were 

 not received from any one portion of the State, but came largely from 

 the northeastern part. Anthrax bact. were demonstrated in 10 ; in 14 

 the organism was not found and in 1 no examination was made. Not 

 infrequently during the year it was found advisable to infect and 

 cause the death of guinea pigs in order to prove unquestionably that 

 the organism isolated from the specimen received was anthrax bact. 

 of the virulent type. 



Bog Cholera. Twenty-two specimens were received, not so much 

 for diagnostic purposes, but to have the diagnosis made upon the 

 field confirmed. In 16 the diagnosis was confirmed ; 3 were considered 

 negative; 1 doubtful, and 2 were not examined. In several instances 



