YONKERS-ON-HUDSON, NEW YORK

WORLD BOOK COMPANY

1910


CONSERVATION OF HEALTH

"Our national health is physically our greatest asset. To prevent any possible deterioration of the American stock should be a national ambition."—Theodore Roosevelt.

The conservation of individual and national health is the keynote of these books

PRINCIPLES OF PUBLIC HEALTH

By Thos. D. Tuttle, M.D., Secretary and Executive Officer of the State Board of Health of Montana. Illustrated. Cloth. vii + 186 pages. List price 50 cents, mailing price 60 cents.

PRIMER OF HYGIENE