II. Hygiene for Young People or, Young People's Physiology. (for
Intermediate Classes)

III. Hygienic Physiology (for Advanced Pupils).

The above are the series originally prepared (as their general title
indicates) to supply the demand created by the laws for temperance
instruction in public schools in the United States. They were written by
experts under the supervision of the Scientific Department of the National
Woman's Christian Temperance Union, published by the instigation of the
same, and have been carefully revised from time to time, under the same
supervision, to keep them abreast with the latest teachings of science.

Being both teachable and well adapted to grade, their educational value,
as proven by schoolroom tests, is of the highest order. We therefore
cordially indorse and highly recommend the Pathfinder Series for use in
schools.

MARY H. HUNT,

_National and International Superintendent of the Scientific Dep't of
the Woman's Christian Temperance Union; Life Director of the National
Educational Association._

ADVISORY BOARD:

JOSEPH COOK, WILLIAM E. SHELDON, ALBERT H. PLUMB, D.D., DANIEL DORCHESTER,
D.D.

PREFACE