No less than from _one-fourth to one-half_ of the children in these families are found to be already infected with tuberculosis.

The places where we look for our new cases of tuberculosis now are in the same rooms or houses with old ones.

A careful consumptive is no source of danger; but alas, not more than one in three are of that character.
[Illustration: A SIGN THAT OUGHT NOT TO BE NECESSARY But, being necessary, it should be strictly respected and obeyed.] It has been estimated that any city or county could provide proper camps, or sanatoria, to accommodate all its consumptives and cure two-thirds of them in the process, support their families meanwhile, and stop the spread of the disease, at an expense not to exceed five dollars each per annum for five years, rapidly diminishing after that.

If this were done, within thirty years consumption would probably become as rare as smallpox is now.

Some day, when the community is ready to spend the money, this will be done, but in the mean time, we must attack the disease by slower and less certain methods.
[Illustration: A COMPARATIVE DEATH-RATE OF CONTAGIOUS DISEASES Note the number of deaths from tuberculosis to one from smallpox; yet smallpox before the days of vaccination and quarantine, was the universal scourge.