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autobiography and selected essays-第28章

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hope and in the faith that; by the advance of molecular physics; we

shall by and by be able to see our way as clearly from the

constituents of water to the properties of water; as we are now

able to deduce the operations of a watch from the form of its parts

and the manner in which they are put together。



Is the case in any way changed when carbonic acid; water; and

nitrogenous salts disappear; and in their place; under the

influence of pre…existing living protoplasm; an equivalent weight

of the matter of life makes its appearance?



It is true that there is no sort of parity between the properties

of the components and the properties of the resultant; but neither

was there in the case of the water。  It is also true that what I

have spoken of as the influence of pre…existing living matter is

something quite unintelligible; but does anybody quite comprehend

the modus operandi '106' of an electric spark; which traverses a

mixture of oxygen and hydrogen?



What justification is there; then; for the assumption of the

existence in the living matter of a something which has no

representative; or correlative; in the not living matter which gave

rise to it?  What better philosophical status has 〃vitality〃 than

〃aquosity〃?  And why should 〃vitality〃 hope for a better fate than

the other 〃itys〃 which have disappeared since Martinus Scriblerus '107'

accounted for the operation of the meat…jack '108' by its inherent

〃meat…roasting quality;〃 and scorned the 〃materialism〃 of those who

explained the turning of the spit by a certain mechanism worked by

the draught of the chimney。



If scientific language is to possess a definite and constant

signification whenever it is employed; it seems to me that we are

logically bound to apply to the protoplasm; or physical basis of

life; the same conceptions as those which are held to be legitimate

elsewhere。  If the phaenomena exhibited by water are its

properties; so are those presented by protoplasm; living or dead;

its properties。



If the properties of water may be properly said to result from the

nature and disposition of its component molecules; I can find no

intelligible ground for refusing to say that the properties of

protoplasm result from the nature and disposition of its molecules。



But I bid you beware that; in accepting these conclusions; you are

placing your feet on the first rung of a ladder which; in most

people's estimation; is the reverse of Jacob's; and leads to the

antipodes of heaven。  It may seem a small thing to admit that the

dull vital actions of a fungus; or a foraminifer; are the

properties of their protoplasm; and are the direct results of the

nature of the matter of which they are composed。  But if; as I have

endeavoured to prove to you; their protoplasm is essentially

identical with; and most readily converted into; that of any

animal; I can discover no logical halting…place between the

admission that such is the case; and the further concession that

all vital action may; with equal propriety; be said to be the

result of the molecular forces of the protoplasm which displays it。

And if so; it must be true; in the same sense and to the same

extent; that the thoughts to which I am now giving utterance; and

your thoughts regarding them; are the expression of molecular

changes in that matter of life which is the source of our other

vital phaenomena。'109'







ON CORAL AND CORAL REEFS '110'





The marine productions which are commonly known by the names of

〃Corals〃 and 〃Corallines;〃 were thought by the ancients to be sea…

weeds; which had the singular property of becoming hard and solid;

when they were fished up from their native depths and came into

contact with the air。





〃Sic et curalium; quo primum contigit auras

Tempore durescit: mollis fuit herba sub undis;〃'111'





says Ovid (Metam。 xv); and it was not until the seventeenth century

that Boccone '112' was emboldened; by personal experience of the facts;

to declare that the holders of this belief were no better than

〃idiots;〃 who had been misled by the softness of the outer coat of

the living red coral to imagine that it was soft all through。



Messer Boccone's strong epithet is probably undeserved; as the

notion he controverts; in all likelihood; arose merely from the

misinterpretation of the strictly true statement which any coral

fisherman would make to a curious inquirer; namely; that the

outside coat of the red coral is quite soft when it is taken out of

the sea。  At any rate; he did good service by eliminating this much

error from the current notions about coral。  But the belief that

corals are plants remained; not only in the popular; but in the

scientific mind; and it received what appeared to be a striking

confirmation from the researches of Marsigli '113' in 1706。  For this

naturalist; having the opportunity of observing freshly…taken red

coral; saw that its branches were beset with what looked like

delicate and beautiful flowers each having eight petals。  It was

true that these 〃flowers〃 could protrude and retract themselves;

but their motions were hardly more extensive; or more varied; than

those of the leaves of the sensitive plant; and therefore they

could not be held to militate against the conclusion so strongly

suggested by their form and their grouping upon the branches of a

tree…like structure。



Twenty years later; a pupil of Marsigli; the young Marseilles

physician; Peyssonel; conceived the desire to study these singular

sea…plants; and was sent by the French Government on a mission to

the Mediterranean for that purpose。  The pupil undertook the

investigation full of confidence in the ideas of his master; but

being able to see and think for himself; he soon discovered that

those ideas by no means altogether corresponded with reality。  In

an essay entitled 〃Traite du Corail;〃  which was communicated to

the French Academy of Science; but which has never been published;

Peyssonel writes:



〃Je fis fleurir le corail dans des vases pleins d'eau de mer; et

j'observai que ce que nous croyons etre la fleur de cette pretendue

plante n'etait au vrai; qu'un insecte semblable a une petite Ortie

ou Poulpe。  J'avais le plaisir de voir remuer les pattes; ou pieds;

de cette Ortie; et ayant mis le vase plein d'eau ou le corail etait

a une douce chaleur aupres du feu; tous les petits insectes

s'epanouirent。L'Ortie sortie etend les pieds; et forme ce que M。

de Marsigli et moi avions pris pour les petales de la fleur。  Le

calice de cette pretendue fleur est le corps meme de l'animal

avance et sorti hors de la cellule。〃*'114'





* This extract from Peyssonel's manuscript is given by M。 Lacaze

Duthiers in his valuable Histoire Naturelle du Corail (1866)。





The comparison of the flowers of the coral to a 〃petite ortie;〃 or

〃little nettle;〃 is perfectly just; but needs explanation。  〃Ortie

de mer;〃 or 〃sea…nettle;〃 is; in fact; the French appellation for

our 〃sea…anemone;〃 a creature with which everybody; since the great

aquarium mania; must have become familiar; even to the limits of

boredom。  In 1710; the great naturalist; Reaumur;'115' had written a

memoir for the express purpose of demonstrating that these 〃orties〃

are animals; and with this important paper Peyssonel must

necessarily have been familiar。  Therefore; when he declared the

〃flowers〃 of the red coral to be little 〃orties;〃 it was the same

thing as saying that they were animals of the same general nature

as sea…anemones。  But to Peyssonel's contemporaries this was an

extremely startling announcement。  It was hard to imagine the

existence of such a thing as an association of animals into a

structure with stem and branches altogether like a plant; and fixed

to the soil as a plant is fixed; and the naturalists of that day

preferred not to imagine it。  Even Reaumur could not bring himself

to accept the notion; and France being blessed with Academicians;

whose great function (as the late Bishop Wilson '116' and an eminent

modern writer '117' have so well shown) is to cause sweetness and

light to prevail; and to prevent such unmannerly fellows as Peyssonel

from blurting out unedifying truths; they suppressed him; and; as

aforesaid; his great work remained in manuscript; and may at this

day be consulted by the curious in that state; in the Bibliotheque

du Museum d'Histoire Naturelle。  Peyssonel; who evidently was a

person of savage and untameable disposition; so far from

appreciating the kindness of the Academicians in giving him time to

reflect upon the unreasonableness; not to say rudeness; of making

public statements in opposition to the views of some of the most

distinguished of their body; seems bitterly to have resented the

treatment he met with。  For he sent all further communications to

the Royal Society of London; which never had; and it is to be hoped

never will have; anything of an academic constitut
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