from whom it is inherited can only be effected by long practice,
consequently the instinct without auxiliary mechanism {105a} is the
originating cause of the auxiliary mechanism.

4. That none of those instinctive actions that are performed rarely,
or perhaps once only, in the lifetime of any individual--as, for
example, those connected with the propagation and metamorphoses of
the lower forms of life, and none of those instinctive omissions of
action, neglect of which necessarily entails death--can be conceived
as having become engrained into the character through habit; the
ganglionic constitution, therefore, that predisposes the animal
towards them must have been fashioned purposively.

5. That even the presence of an auxiliary mechanism {105b} does not
compel the unconscious to a particular corresponding mode of
instinctive action, but only predisposes it. This is shown by the
possibility of departure from the normal type of action, so that the
unconscious purpose is always stronger than the ganglionic
constitution, and takes any opportunity of choosing from several
similar possible courses the one that is handiest and most convenient
to the constitution of the individual.

We now approach the question that I have reserved for our final one,-
-Is there, namely, actually such a thing as instinct, {105c} or are
all so-called instinctive actions only the results of conscious
deliberation?

In support of the second of these two views, it may be alleged that
the more limited is the range of the conscious mental activity of any
living being, the more fully developed in proportion to its entire