aspects are
treated here in a lucid and comprehensive manner. Designed for wide
distribution, these articles have been written to meet the needs of
the dweller in the more densely populated communities, as well as
those living in the less thickly settled portion of the country.

In large cities the water supply is a problem that is cared for by
regularly constituted sanitary authorities. Pure water is a vital
necessity, but the inhabitant of a city has no need to personally
concern himself with the source of supply. In the country, however,
the home builder must often decide the matter for himself, and it is
the aim of this book to give him the needed directions for avoiding
many errors and pitfalls that abound in this direction.

House construction, with its intricate problems, is also a more
serious matter for the country dweller than for his city brother.

In the matter of food supply, the inhabitant of a country district is
more fortunate. Fresh vegetables and dairy products are much more
easily obtained, and their freshness and purity more dependable.

The article on water supply by Mr. Gerhard is authoritative, written,
as it is, by a most eminent sanitarian. The publishers are to be
congratulated upon the following valuable contribution to the same
subject as regards the use of copper sulphate and the concise
presentation of plans for mosquito extermination, while the extended
work of Dr. Price and Dr. Baker's "Food Adulteration" are much to be
commended. The two latter have been connected with the Department of
Health of New York City, and have the advantage of experience in an
organization which gives to the citizens of New York the protection to
health that the wise use of science, knowledge, and money afford.

I trust that the notes I have added in the light of recent practice of
the New York City Department of Health may make this material of the
utmost practical value to the householder of to-day.

Through this Department of Health, New York City spent, during 1905,
over $1,500,000, and for 1906 it has appropriated over $1,800,000.
This vast sum of money is used for the sole purpose of safeguarding
its citizens from disease. Sanitation in its varied branches is
pursued as an almost exact science, and the efforts of trained minds
are constantly employed in combating disease and promoting sanitation.

The cities care for their own, but the greater number of the
inhabitants of this country must rely upo