GOVERNMENTAL INSPECTION 163 
120. Work of Veterinarians. In various phases 
of the governmental work of the city, state and 
nation the services of veterinarians are required 
for inspection service. In the supervision of 
dairies and their products veterinarians are 
needed to assure the healthfulness of the cattle, 
or goats, and as a portion of their duty they must 
be depended upon to give tuberculin, tests when- 
ever required. In the matter of meat production 
veterinarians are required to make inspections 
before and after slaughtering, to detect diseases 
among animals, and to exclude such meats as may 
show conditions which would endanger human 
life were they consumed. In the dairy industries 
the veterinarians are thus used by cities, states 
and the national government. In the meat indus- 
try their most important service is under the fed- 
eral laws, and to a less extensive, but not less im- 
portant degree, they may be employed in some 
cities and states. Veterinarians also find occupa- 
tion in the detection and restriction of animal dis- 
eases. Their services are also required by the 
national government in the supervision of the 
manufacture of biologic products. 
121. Methods of Governmental Control. There 
are three methods possible in governmental con- 
trol over industries which concern the people gen- 
erally. First, governmental ownership, which 
while especially applicable in such a matter as 
water supply, and though it has been recom- 
mended or suggested for milk supply,’ would 
1Jethro Brown, Underlying 
Principles of Modern Legisla- 
tion, p. 202. 
