good vitality and pure, normal blood and tissues, and if they apply
in the prenatal and postnatal treatment of the child the necessary
insight and foresight, there cannot be disease heredity. In order to
create abnormal hereditary tendencies, the parents, or earlier
ancestors, must have ignorantly or wantonly violated Nature's Laws,
such violation resulting in lowered vitality and in deterioration of
blood and tissues.

The female and male germinal cells unite and form the primitive
reproductive cell--the prototype of marriage. The human body with
its millions of cells and cell colonies is developed by the
multiplication, with gradual differentiation, of the reproductive
cell. Its abnormalities of structure, of cell materials and of
functional tendencies are reproduced just as surely as its normal
constituents. Herein lies the simple explanation of heredity which
is proved to be an actual fact, not only by common experience and
scientific observation but also in a more definite way by Nature's
records in the iris of the eye.

The iris of the newborn child reveals in its diagnostic details not
only, in a general way, hereditary taints, lowered resistance, and
deterioration of vital fluids, but frequently special weakness and
deterioration in those organs which were weak or diseased in the
parents. Under the conventional (unnatural) management of the
infant, these hereditary tendencies to weakness and disease and
their corresponding signs in the iris become more and more
pronounced, proceeding through the various stages of incumbrance
from acute, infantile diseases through chronic catarrhal conditions
to the final destructive stages.