552 



CLINICAL VETERINARY MEDICINE AND SURGERY. 



Guinea-pig. 



Died February 2nd 



(13 days). 



A feii} granulations 



in the liver. 



CAT. 



Pulmonary tuberculosis. 

 January 20th, 189 1. 



Horse.* 

 Died February 13th 



(24 days). 



Miliary tuberculosis 



of the lungs. 



Fowl.* 



Killed June 28th 



(159 days). 



No lesion. 



Fowl. 

 Killed June 28th (159 



days). 

 No lesion. 



Summary of the Attempts to inoculate Gallinacecs with Mammalian 

 Tuberculosis. — Forty members of the Gallinacese were inoculated with 

 mammahan tuberculosis ; none died spontaneously ; all were killed 

 after a varying period. On post-mortem examination tuberculosis was 

 found in five, but in thirty-five no lesion could be detected. 



The results obtained are indicated in the following table, which 

 summarises all this portion of our experiments. 



Man 



Imonary 

 berculosis 



Tuberculosis 

 of the testicle 



/ Pu 



1 tub 



I 



{ 

 Dog I P;'i"io"a'-y r 



° L tuberculosis i 



{ 



Ma 



Oxen i Pulmonary 



^^^^ I tube ' ■ 



monary 



berculosis 



Cat i Pulmonary 

 I tut 



J berculosis 



Method of inoculation. 



Results. 



Number 

 of animals 

 inoculated. Negative. Positive. 



Directly 



After passage through guinea-pig 



After passage through fowl 



Directly 



Directly 



After passage through cat 



Directly 



Directly . 



After passage through cat 



2 



23 

 2 



40 



I 



20 

 I 



5 



2 



35 



Without attempting a comparative study of tuberculosis in the 

 different mammals, we would draw attention to the fact that these 

 experiments, performed with material from bovines, and from the dog, 

 cat, and horse, may be cited in favour of the unicity of tuberculosis. 

 The guinea-pigs and rabbits died in the same way as when inoculated 

 with human tuberculosis. Development has often been very rapid, for 

 bovine tuberculosis killed guinea-pigs in two and three weeks, and 

 canine tuberculosis in five weeks. 



Persistence of the Human Bacillus in the Organs of Gallinaccce. — 

 Our experiments, and those published by other investigators, show 



