PRINCIPLES OF VETERINARY SURGERY 393 



respiratory tract the results are negative, and the digestive 

 tract is an equally unfavorable entrance channel in the re- 

 production of the disease. 



Gangrenous septicaemia is ti'ansmissible from mother to 

 foetus. 



The effects of the toxic products of the septic vibrio 

 have been stvtdied by Roux and Chamberland with intraper- 

 itoneal injections and by Rodet and Courmont with intra- 

 venous injections. Intravenous injections always provoke 

 trouble and may cause death. The respiration is always 

 markedly affected and the action on the heart is announced 

 by diminution in the pulse rate and a brisk drop in the ar- 



&^ 



. v-jfc/ii/ 



m^^^'^n 



Fig. 39. 

 Bacillus Septicus. Colony Isolated in Gelose. 



terial pressure. The temperature lowers and may fall to 35 

 degrees C. 



RESISTANCE OF THE VIRUS.— The researches of 

 Arloing have clearly placed in evidence the considerable re- 

 sistance of the septic vibrio to the various antiseptic agents. 

 After twenty-fours of contact, the mixture of equal parts 

 with the following substances was not followed by any sensi- 

 ble modification in the properties of the virus : 



Carbolic acid at 3 and 5 per cent 



Boric acid at 2 per cent 



Permanganate of potash at i and 2 per cent 



Iodoform 



