d that millions of unfortunates are unable individually to
remedy these two disadvantages in their lot in life. Yet they can, even
in these two respects, accomplish much if they take an intelligent
interest in hygiene. The graduates of tuberculosis sanatoria are largely
among the poor and they are doing much good missionary work in securing
better ventilation, both in the home and in the workroom. They find this
possible partly by insisting on more open windows in home and workshops,
partly by changing their home to one better equipped with windows or
situated in the suburbs instead of in the city, partly by changing their
occupations, partly by getting the cooperation of their employer or
simply by cooperating with him when he is ready to do his part. The
workman can also accomplish something through the Trades Unions,
especially in regard to hours of work. Employers will increasingly
cooperate in this movement, as they come to realize that the securing of
efficiency in their workmen is to their interest, and that monotony,
long hours, and other unhygienic elements which are now, through sheer
carelessness, often imposed on their workmen, bring back in the end big
financial losses on themselves.

Except for the evils mentioned--those of housing and working
conditions--there are few people so poor that they can not buy the means
of living a healthy life. In fact, hygiene is one of the few precious
gifts which can be had almost for the asking. Most people can sleep
out-of-doors, if they will--if in no other way than by the so-called
indoor window-tent--or can take deep-breathing exercises without cost.
It costs nothing to stand, sit, and walk erect, to evacuate thoroughly,
regularly, and frequently. It costs less than nothing to avoid
overeating and overweight, and to be totally abstinent from alcohol and
tobacco.

[Sidenote: Cost of Food]

Almost all can allow enough time for meals to eat slowly. Coarse and raw
foods are always to be had and are usually cheaper than the
conventional soft, concentrated cooked foods. In fact, meat, eggs, and
like foods are among the most expensive and the least desirable. If we
compare the cost of flour and of the other cheapest food materials, with
the cost of oysters, one of the dearest, we find that the latter is
fifty times as expensive as the former for the same food value. This
takes no account, of course, of the expenses involved in cooking either
of them. It has been proved by