STATE CONTROL OF TUBERCULOSIS. 
545 
seem to exclude the bull as a possible source of infection, so far 
as sexual intercourse was concerned, in any of these cases. 
In studying the problem of State control I should like to 
call your attention to the principles of sanitary science as applied 
in the United States and European countries, to the suppression 
and prevention of contagious disease. 
A few years ago, at the time of the latest cholera scare, the 
seaports of this country were all guarded and a strict quarantine 
of all vessels coming to this country from infected ports, was en¬ 
forced. Most European countries took the same precaution. 
Great Britain, however, proved an exception to the rule. Her 
ports were open to the world, vessels of all nationalities went in 
and out and tourists and travelers from all countries had the 
right to go and come as they pleased. Great Britain relied on 
the excellence of her internal sanitary arrangements to combat 
the disease. If she had placed all vessels from infected ports in 
quarantine the loss to the country would have been tremendous. 
The traffic between Great Britain and other countries was too 
great and the number of vessels entering her ports from infected 
countries were too numerous to permit of it. The disturbance 
to traffic would have been enormous, and in the opinion of the 
authorities the gain would not have been commensurate with 
the probable loss; other means, therefore, had to be relied on to 
control and check the spread of the disease. 
In the same way the difficulties in the way of the total and 
permanent exclusion of the tubercle bacillus are too great to 
permit of our relying on these means alone, we must not only 
attempt to control the breeding places of the bacillus and lessen 
the number that are mixed with the dust in infected premises, 
but we must look to the perfecting of internal sanitary arrange¬ 
ments, so that individuals may not become such easy victims of 
the disease, and by using all the means in our power and by 
constant and continual effort the existing conditions may be 
bettered, so that in time we may reach some measure of success, 
without the great expense involved in the total destruction of 
all animals that react to the test. 
