16 DIRECTOR’S REPORT OF THE 
is not fully determined. It is proposed to continue experimental 
work along this line. 
Bang method of controlling tuberculosis——In 1900 it was found 
that more than half the animals of the Station herd were affected 
with tuberculosis. In 1901 the Bang method of controlling tuber- 
culosis was applied to the herd. 
The Bang method consists in destroying all animals which show 
pronounced physical symptoms of the advanced stages of tubercu- 
losis and dividing the remainder on the basis of the tuberculin test. 
Tuberculin tests are made at intervals to detect any new cases 
which may develop. The milk from the tuberculous animals is 
heated sufficiently to destroy any disease germs which may be 
present. Practically all calves are sound at birth and remain so 
if proper precautions are taken against subsequent infection. 
Within four years the natural increase in our herd amounted 
to more than the original number of diseased animals and we now 
have a sound herd which is better in all respects than the one with 
which we started and we have accomplished this with a minimum 
of trouble and expense. It would seem that our experience might 
be a valuable object lesson to the cattle owners of the State. 
DEPARTMENT OF BACTERIOLOGY. 
Examination of commercial cultures for legumes.—Last season 
we examined thirty-one packages of cotton which had been inocu- 
lated with legume bacteria and did not find a good one. 
Reports from experiment stations in Maine, Massachusetts, New 
York (Cornell), Pennsylvania, Delaware, Virginia, West Virginia, 
North Carolina, Georgia, Michigan, Wisconsin, Kentucky, Okla- 
homa and Ontario unite in pronouncing such inoculated cotton 
of little or no use in inoculating legumes. No experiment station 
so far as known has obtained satisfactory results from the use of 
such inoculated cotton. | 
Further tests of this material would be needless but for the fact 
that one of the commercial companies is now putting its product 
upon the market in metal containers, claiming thereby to obviate 
the objections which were raised against the inoculated cotton 
packed in parchment paper and tin foil such as was used last 
season. | 
