6 BULLETIN 584, U. S. DEPARTMENT OF AGRICULTURE. 
sentatives. Each of the district representatives was charged with 
the duty of reporting the occurrence of disease among hogs in his 
district to the federal inspector in charge. The State veterinarian 
was to have all local stockyards and loading places cleaned and 
disinfected and to cooperate with Federal officials by instructing 
- owners of infected premises concerning methods of disinfection, and 
by supervising such operations. ‘The Federal inspectors, besides par- 
ticipating in the sanitary work and the work of organization, were 
particularly charged with the administration of serum to infected 
herds and the immunization of neighboring herds. To avoid antago- 
nism on the part of farmers, a partial quarantine only of infected 
premises was enforced. 
It will thus be seen that work was done along three principal lines, 
as follows: 
1. Organization and education, 
2. Sanitation. 
3. Serum treatment. 
In practically all of the counties hog cholera was widespread when 
the work was begun, and it was soon found that many difficulties 
lay in the way of carrying out the plan proposed. In the first place 
the great prevalence of disease soon rendered it impracticable to 
attempt the immunization of healthy herds on farms surrounding 
an infected farm, for the reason that the supply of serum and the 
number of inspectors were insufficient to carry out that plan. For 
each infected herd it would have been necessary to treat from 4 to 6. 
neighboring herds. This was only one of the difficulties encountered. 
In the beginning of the work, particularly, the farmers as a whole 
were apathetic and showed little interest in the experiments. Many 
were skeptical concerning the value of the serum, and it was not 
unusual to find in districts supposed to be canvassed by cooperating 
farmers herds which had already been infected for weeks without 
any report whatever of the condition having been made to the in- 
spectors. 
Thus it will be seen that at the very outset the carefully prepared 
plan of procedure was found to be impracticable, chiefly because of 
extensive infection and the lack of interest displayed by the farmers 
themselves. Therefore a change in the details of the work was 
decided upon. The immunization of healthy herds in the neighbor- 
hood of outbreaks was abandoned. More time was given to educa- 
tional work through addresses to assemblages of farmers and by 
personal visits to individuals residing in the vicinity of infected 
farms. This educational work was directed particularly toward ex- 
plaining the ways in which hog cholera is spread and urging the 
importance of sanitation and the establishment of a voluntary quar- 
