BY PROFESSOR J. H. GREEN.

[This is the discourse an early report of which was the foundation of

Coleridge's remarks upon instinct, &c., which appear at pp. 160-164.

It was first added as an Appendix to the "Aids to Reflection," in the

edition of 1843; being extracted from an Appendix to Professor Green's

"Vital Dynamics"[168] 1840, where it appears at pp. 88-96. It was

then given without the Professor's introductory words, which we now

add.--ED.]

The following remarks on the import of instinct are those to which

Coleridge refers in the "Aids to Reflection" (p. 177, last

edition[169]) as in accordance with his view of the understanding,

differing in degree from instinct, and in kind from reason; and

whatever merit they possess must have been derived from his

instructive conversation. They are here inserted in the hope that they

may interest the reader in connexion both with the passages of the

preceding discourse, and with the writings of Coleridge on this

important subject.

What is Instinct? As I am not quite of Bonnet's opinion "that

philosophers will in vain torment themselves to define instinct, until

they have spent some time in the head of the animal without actually

being that animal," I shall endeavour to explain the use of the term.

I shall not think it necessary to controvert the opinions which have

been offered on this subject, whether the ancient doctrine of

Descartes, who supposed that animals were mere machines; or the modern

one of Lamarck, who attributes instincts to habits impressed upon the

organs of animals, by the constant efflux of the nervous fluid to

these organs, to which it has been determined in their efforts to

perform certain actions, to which their necessities have given birth.

And it will be here premature to offer any refutation of the opinions

of those who contend for the identity of this faculty with reason, and

maintain that all the actions of animals are the result of invention

and experience;--an opinion maintained with considerable plausibility

by Dr. Darwin.

Perhaps the most ready and certain mode of coming to a conclusion in

this intricate enquiry will be by the apparently circuitous route of

determining first, what we do not mean by the word. Now we certainly

do not mean, in the use of the term, any act of the vital power in the

production or maintenance of an organ: nobody thinks of saying that

the teeth grow by instinct, or that when the muscles are increased in

vigour and size in consequence of exercise, it is from such a cause or

principle. Neither do we attribute instinct to the direct functions of

the organs in providing for the continuance and sustentation of the

whole co-organized body. No one talks of the liver secreting bile, or

of the heart acting for the propulsion of the blood, by instinct.

Some, indeed, have maintained that breathing, even voiding the

excrement and urine, are instinctive operations; but surely these, as

well as the former, are automatic, or at least are the necessary

result of the organization of the parts in and by which the actions

are produced. These instances seem to be, if I may so say, below

instinct. But again, we do not attribute instinct to any actions

preceded by a will conscious of its whole purpose, calculating its

effects, and predetermining its consequences, nor to any exercise of

the intellectual powers, of which the whole scope, aim, and end are

intellectual. In other terms, no man, who values his words, will talk

of the instinct of a Howard, or of the instinctive operations of a

Newton or Leibnitz, in those sublime efforts, which ennoble and cast a

lustre, not less on the individuals than on the whole human race.

To what kind or mode of action shall we then look for the legitimate

application of the term? In answer to this query, we may, I think,

without fear of the consequences, put the following cases as

exemplifying and justifying the use of the term Instinct in an

appropriate sense. First: when there appears an action, not included

either in the mere functions of life, acting within the sphere of its

own organismus; nor yet an action attributable to the intelligent will

or reason; yet, at the same time, not referable to any particular

organ,--we then declare the presence of an Instinct. We might

illustrate this in the instance of a bull-calf butting before he has

horns, in which the action can have no reference to its internal

economy, to the presence of a particular organ, or to an intelligent

will. Secondly, likewise (if it be not indeed included in the first),

we attribute Instinct where the organ is present; if only the act is

equally anterior to all possible experience on the part of the

individual agent, as for instance, when the beaver employs its tail

for the construction of its dwelling; the tailor-bird its bill for the

formation of its pensile habitation; the spider its spinning organ for

fabricating its artfully woven nets, or the viper its poison fang for

its defence. And lastly, generally, where there is an act of the whole

body as one animal, not referable to a will conscious of its purpose,

nor to its mechanism, nor to a habit derived from experience, nor

previous frequent use. Here with most satisfaction, and without doubt

of the propriety of the word, we declare an Instinct; as examples of

which, we may adduce the migratory habits of birds; the social

instincts of the bees, the construction of their habitations, composed

of cells formed with geometrical precision, adapted in capacity to

different orders of the society, and forming storehouses for

containing a supply of provisions;--not to mention similar instances

in wasps, ants, termites; and the endless contrivances for protecting

the future progeny.

But if it be admitted that we have rightly stated the application of

the term, what, we may ask, is contained in the examples adduced, or

what inferences are we to make as to the nature of Instinct itself, as

a source and principle of action? We shall, perhaps, best aid

ourselves in the enquiry by an example, and let us take a very

familiar one of a caterpillar taking its food. The caterpillar seeks

at once the plant which furnishes the appropriate aliment, and this

even as soon as it creeps from the ovum; and the food being taken into

the stomach, the nutritious part is separated from the innutritious,

and is disposed of for the support of the animal. The question then

is, what is contained in this instance of instinct? In the first place

what does the vital power in the stomach do, if we generalize the

account of the process, or express it in its most general terms?

Manifestly it selects and applies appropriate means to an immediate

end, prescribed by the constitution;--first, of the particular organ,

and then of the whole body or organismus. This we have admitted is not

instinct. But what does the caterpillar do? Does it not also select

and apply appropriate means to an immediate end, prescribed by its

particular organization and constitution? But there is something more;

it does this according to circumstances;--and this we call Instinct.

But may there not be still something more involved? What shall we say

of Hüber's humble-bees? A dozen of these were put under a bell glass

along with a comb of about ten silken cocoons, so unequal in height as

not to be capable of standing steadily. To remedy this, two or three

of the humble-bees got upon the comb, stretched themselves over its

edge, and with their heads downwards, fixed their forefeet on the

table on which the comb stood, and so with their hindfeet kept the

comb from falling. When these were weary others took their places. In

this constrained and painful posture, fresh bees relieving their

comrades at intervals, and each working in its turn, did these

affectionate little insects support the comb for nearly three days;

at the end of which time they had prepared sufficient wax to build

pillars with it. And what is still further curious, the first pillars

having got displaced, the bees had again recourse to the same

manœuvre. What then is involved in this case? Evidently the same

selection and appropriation of means to an immediate end as before;

but observe! according to varying circumstances.

And here we are puzzled;--for this becomes Understanding. At least no

naturalist, however predetermined to contrast and oppose Instinct to

Understanding, but ends at last in facts in which he himself can make

out no difference. But are we hence to conclude that the instinct is

the same, and identical with the human understanding? Certainly

not;--though the difference is not in the essential of the definition,

but in an addition to, or modification of, that which is essentially

the same in both. In such cases, namely, as that which we have last

adduced, in which instinct assumes the semblance of understanding, the

act indicative of instinct is not clearly prescribed by the

constitution or laws of the animal's peculiar organization, but arises

out of the constitution and previous circumstances of the animal, and

those habits, wants, and that predetermined sphere of action and

operation which belong to the race, and beyond the limits of which it

does not pass. If this be the case, I may venture to assert that I

have determined an appropriate sense for instinct:----namely, that it

is a Power of selecting and applying appropriate means to an immediate

end, according to circumstances, and the changes of circumstances,

these being variable and varying; but yet so as to be referable to the

general habits, arising out of the constitution and previous

circumstances of the animal considered not as an individual, but as a

race.

We may here, perhaps, most fitly explain the error of those who

contend for the identity of Reason and Instinct, and believe that the

actions of animals are the result of invention and experience. They

have, no doubt, been deceived, in their investigation of Instinct, by

an efficient cause simulating a final cause; and the defect in their

reasoning has arisen in consequence of observing in the instinctive

operations of animals the adaptation of means to a relative end, from

the assumption of a deliberate purpose. To this freedom or choice in

action and purpose, instinct, in any appropriate sense of the word,

cannot apply, and to justify and explain its introduction, we must

have recourse to other and higher faculties than any manifested in the

operations of instinct. It is evident, namely, in turning our

attention to the distinguishing character of human actions, that there

is, as in the inferior animals, a selection and appropriation of means

to ends--but it is (not only according to circumstances, not only

according to varying circumstances, but it is) according to varying

Purposes. But this is an attribute of the intelligent will, and no

longer even mere understanding.

And here let me observe that the difficulty and delicacy of this

investigation are greatly increased by our not considering the

understanding (even our own) in itself, and as it would be were it not

accompanied with, and modified by, the co-operation of the will, the

moral feeling, and that faculty, perhaps best distinguished by the

name of Reason, of determining that which is universal and necessary,

of fixing laws and principles whether speculative or practical, and of

contemplating a final purpose or end. This intelligent will,--having a

self-conscious purpose, under the guidance and light of the reason, by

which its acts are made to bear as a whole upon some end in and for

itself, and to which the understanding is subservient as an organ or

the faculty of selecting and appropriating the means--seems best to

account for that progressiveness of the human race, which so evidently

marks an insurmountable distinction and impassable barrier between man

and the inferior animals; but which would be inexplicable were there

no other difference than in the degree of their intellectual

faculties.

Man doubtless has his instincts, even in common with the inferior

animals, and many of these are the germs of some of the best feelings

of his nature. What, amongst many, might I present as a better

illustration, or more beautiful instance, than the _storgè_ or

maternal instinct? But man's instincts are elevated and ennobled by

the moral ends and purposes of his being. He is not destined to be the

slave of blind impulses, a vessel purposeless, unmeant. He is

constituted by his moral and intelligent will, to be the first freed

being, the master-work and the end of nature; but this freedom and

high office can only co-exist with fealty and devotion to the service

of truth and virtue. And though we may even be permitted to use the

term Instinct, in order to designate those high impulses, which in the

minority of man's rational being, shape his acts unconsciously to

ultimate ends, and which in constituting the very character and

impress of the humanity reveal the guidance of Providence; yet the

convenience of the phrase, and the want of any other distinctive

appellation for an influence _de supra_, working unconsciously in and

on the whole human race, should not induce us to forget that the term

instinct is only strictly applicable to the Adaptive Power, as the

faculty, even in its highest proper form, of selecting and adapting

appropriate means to proximate ends according to varying

circumstances,--a faculty which however, only differs from human

understanding in consequence of the latter being enlightened by

reason,--and that the principles which actuate man as ultimate ends,

and are designed for his conscious possession and guidance, are best

and most properly named Ideas.

[168] 'Vital Dynamics: The Hunterian Oration before the Royal College

of Surgeons in London, 14th February, 1840; by Joseph Henry Green,

F.R.S., Late Professor of Anatomy to the College: Professor of Anatomy

to the Royal Academy: One of the Surgeons to St. Thomas's Hospital.'

8vo. William Pickering, 1840.--ED.

[169] This must have been the 4th edition, 1839, the latest corrected

by the author, and that which supplies our text in the main.

Coleridge's reference is at pp. 166-170 of the present edition.--ED.

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