ystal
by evaporation and concentration of a liquid does not, in its
dynamic aspect, differ much from the precipitation of an
amorphous sediment. The organism, on the other hand, represents a
more or less unstable condition formed and maintained by inflow
of energy; its formation, indeed, often attended with a loss of
kinetic energy (fixation of carbon in plants), but, if so,
accompanied by
[1] It appears exceptional for the crystal line configuration to
stand higher in the scale of energy than the amorphous.
74
a more than compensatory increase of potential molecular energy.
Thus, between growth in the living world and growth in the dead
world, the energy relations with the environment reveal a marked
contrast. Again, in the phenomena of combustion, there are
certain superficial resemblances which have led to comparison
between the two. Here again, however, the attitudes towards the
energy of the environment stand very much as + and -. The life
absorbs, stores, and spends with economy. The flame only
recklessly spends. The property of storage by the organism calls
out a further distinction between the course of the two
processes. It secures that the chemical activity of the organism
can be propagated in a medium in which the supply of energy is
discontinuous or localised. The chemical activity of the
combustion can, strictly speaking, only be propagated among
contiguous particles. I need not dwell on the latter fact; an
example of the former is seen in the action of the roots of
plants, which will often traverse a barren place or circumvent an
obstacle in their search for energy. In this manner roots will
find out spots of rich nutriment.
Thus there is a dynamic distinction between the progress of the
organism and the progress of the combustion, or of the chemical
reaction generally. And although there be unstable chemical
systems which absorb energy during reaction, these are
(dynamically) no more than the expansion of the compressed gas.
There is a certain
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initial capacity in the system for a given quantity of energy;
this satisfied, progress ceases. The progress of the organism in
time is continual, and goes on from less to greater so long as
its development is unconstrained and the supply of energy is
unlimited.
We must regard the organism as a configuration which is so
contrived as to evade the tendency of the universal laws of
nature. Except we are prepared to believe that a violation of
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