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SUMMARY OF EVOLUTIONISM 213

2. This redistribution constitutes evolution where there
is a predominant integration of matter and dissipation of
motion, and constitutes dissolution where there is a pre-
dominant absorption of motion and disintegration of matter.

3. Evolution is simple when the process of integration, or
the formation of a coherent aggregate, proceeds uncomplicated
by other processes.

4. Evolution is compound when, along with this primary
change from an incoherent to a coherent state, there go on
secondary changes, due to differences in the circumstances
of the different parts of the aggregate.

5. These secondary changes constitute a transformation
of the homogeneous into the heterogeneous—a transformation
which, like the first, is exhibited in the universe as a whole
and in all (or nearly all) its details—in the aggregate of
stars and nebulas; in the planetary system; in the earth as
an inorganic mass; in each organism, vegetal or animal (von
Baer's law) ; in the aggregate of organisms throughout
geologic time; in the mind; in society; in all products of
social activity.

6. The process of integration, acting locally as well as
generally, combines with the process of differentiation to
render this change, not simply from homogeneity to hetero-
geneity, but from an indefinite homogeneity to a definite
heterogeneity; and this trait of increasing definiteness,
which accompanies the trait of increasing heterogeneity, is,
like it, exhibited in the totality of things, and in all its
divisions and sub-divisions down to the minutest.

7. Along with this redistribution of the matter compos-
ing any evolving aggregate there goes on a redistribution of
the retained motion of its components in relation to one
another; this also becomes, step by step, more definitely
heterogeneous.

8. In the absence of a homogeneity that is infinite and
absolute, this redistribution, of which evolution is one phase,
is inevitable. The causes which necessitate it are :—

9. The instability of the homogeneous, which is con-
sequent upon the different exposures of the different parts
of any limited aggregate to incident forces. The transforma-
tions hence resulting are complicated by—



	SUMMARY OF EVOLUTIONISM 213 2. This redistribution constitutes evolution where there is a predominant integration of matter and dissipation of motion, and constitutes dissolution where there is a pre- dominant absorption of motion and disintegration of matter. 3. Evolution is simple when the process of integration, or the formation of a coherent aggregate, proceeds uncomplicated by other processes. 4. Evolution is compound when, along with this primary change from an incoherent to a coherent state, there go on secondary changes, due to differences in the circumstances of the different parts of the aggregate. 5. These secondary changes constitute a transformation of the homogeneous into the heterogeneous—a transformation which, like the first, is exhibited in the universe as a whole and in all (or nearly all) its details—in the aggregate of stars and nebulas; in the planetary system; in the earth as an inorganic mass; in each organism, vegetal or animal (von Baer's law) ; in the aggregate of organisms throughout geologic time; in the mind; in society; in all products of social activity. 6. The process of integration, acting locally as well as generally, combines with the process of differentiation to render this change, not simply from homogeneity to hetero- geneity, but from an indefinite homogeneity to a definite heterogeneity; and this trait of increasing definiteness, which accompanies the trait of increasing heterogeneity, is, like it, exhibited in the totality of things, and in all its divisions and sub-divisions down to the minutest. 7. Along with this redistribution of the matter compos- ing any evolving aggregate there goes on a redistribution of the retained motion of its components in relation to one another; this also becomes, step by step, more definitely heterogeneous. 8. In the absence of a homogeneity that is infinite and absolute, this redistribution, of which evolution is one phase, is inevitable. The causes which necessitate it are :— 9. The instability of the homogeneous, which is con- sequent upon the different exposures of the different parts of any limited aggregate to incident forces. The transforma- tions hence resulting are complicated by—