254 
NOCARD AND ROSSIGNOL. 
tion, said that experiments were necessary to determine, as 
accurately as possible, the time which elapses between the 
tubercular .infection and the first symptoms in the infected 
animal. 
It seems to me that those experiments could be conducted 
by our society, and in this connection I would ask for the co¬ 
operation of Mr. Rossignol. I now request him to prepare a 
plan and our society will decide whether it is possible to under¬ 
take experiments which appear to me to be absolutely indis¬ 
pensable in view of the difficulties met with by experts in ascer¬ 
taining the age of the lesions. 
In reply Mr. Rossignol said he was convinced that the pro¬ 
posed experiments would be very valuable and he would aici the 
society, but money was very essential and where shall it come 
from ? I will cheerfully prepare a programme and have it 
ready for the January meeting. 
The programme was presented at the January, 1900, meeting, 
discussed at the February meeting, amended by Prof. Nocard, 
and finally adopted, as follows: 
The Society of Practical Veterinary Medicine, desiring to es¬ 
tablish as accurately as possible the period of incubation of tu¬ 
berculosis in bovines and approximately the age of tubercular 
lesions in bovines experimentally made, presents the following 
plan: 
Ten Breton heifers and two milch cows of the same breed 
shall be bought and subjected to the following experi¬ 
ments : 
1st. All these animals shall, not later than two days after 
their arrival at Pouilly le Fort, be subjected to the tuberculin 
test in order to discard any animal which might react. 
2d. The committee appointed shall, four days after the tu¬ 
berculin test of said animals, proceed as follows: 
1. Four heifers shall be infected through the digestive organs 
in the following manner : tubercular material taken from the 
lungs of tuberculous animals shall be given them with their 
solid and liquid food. 
