demonstrations of the methods of preventing the spread of the disease,
advise him as to his food, and see that he is supplied with adequate
amounts of milk and eggs, and, finally, round up all the children of the
family and any adults who are in a suspicious condition of health, and
bring them to the dispensary for examination. Distressing as are these
findings, reaching in some cases as high as fifty and sixty per cent of
the children, they have already saved hundreds of children, and
prevented hundreds of others from growing up crippled or handicapped.

It must be remembered that the tubercle bacillus causes not merely
disease of the lungs in children but also a large majority of the
crippling diseases of the bones, joints, and spine, together with the
whole group of strumous or scrofulous disorders, and a large group of
intestinal diseases and of brain lesions, resulting in convulsions,
paralysis, hydrocephalus, and death. The battle-ground of the future
against tuberculosis is the home.

We speak of the churchyard as "haunted," and we recoil in horror from
the leper-house or the cholera-camp. Yet the deadliest known hotbed of
horrors, the spawning ground of more deaths than cholera, smallpox,
yellow fever, and the bubonic plague combined, is the dirty floor of the
dark, unventilated living-room, whether in city tenement or village
cottage, where children crawl and their elders spit.

It is scarcely to the credit of our species that for convincing, actual
demonstrations of what can be done toward stamping out tuberculosis, by
measures directed against the bacillus alone, we are obliged to turn to
the lower animals. By a humiliating paradox we are never quite able to
put ourselves under those conditions which we know to be ideal from a
sanitary point of view. There are too many prejudices, too many vested
interests, too many considerations of expense to be reckoned with. But
with the lower animals that come under our care we have a clear field,
free from obstruction by either our own prejudices or those of others.
In this realm the stamping out of tuberculosis is not merely a rosy
dream of the future but an accomplished fact, in some quarters even an
old story. Two illustrations will suffice, one among domestic animals,
the other among wild animals in captivity. The first is among pure-bred
dairy cattle, the pedigreed Jerseys and Holsteins. No sooner did the
discovery of the bacillus provide us with a means of iden