loss of body heat, rigor mortis or stiffening of the muscles,
coagulation of the blood and decomposition.




CHAPTER III

THE GROWTH OF THE BODY.--GROWTH MORE RAPID IN EMBRYONIC PERIOD.--THE
COÖRDINATION AND REGULATION OF GROWTH.--TUMORS.--THE GROWTH OF TUMORS
COMPARED WITH NORMAL GROWTH.--SIZE, SHAPE AND STRUCTURE OF TUMORS.--
THE GROWTH CAPACITY OF TUMORS AS SHOWN BY THE INOCULATION OF TUMORS OF
MICE.--BENIGN AND MALIGNANT TUMORS.--EFFECT OF INHERITANCE.--ARE
TUMORS BECOMING MORE FREQUENT?--THE EFFECT PRODUCED BY A TUMOR ON THE
INDIVIDUAL WHO BEARS IT.--RELATION OF TUMORS TO AGE AND SEX.--THEORIES
AS TO THE CAUSE OF TUMORS.--THE PARASITIC THEORY.--THE TRAUMATIC
THEORY.--THE EMBRYONIC THEORY.--THE IMPORTANCE OF THE EARLY
RECOGNITION AND REMOVAL OF TUMORS.


The power of growth is possessed by every living thing, but growth is
not limited to the living. Crystals also will grow, and the rapidity
and character of growth and the maximum size of the crystal depends
upon the character of the substance which forms the crystal. From the
single cell or ovum formed by the union of the male and female sexual
cells, growth is continuous until a size corresponding to the type of
the species is attained. From this time onward growth is limited to
the degree necessary to supply the constant loss of material which the
body undergoes. The rapidity of the growth of the body and of its
component parts differs at different ages, and becomes progressively