2016년 3월 3일 목요일

The Hand Phrenologically Considered 5

The Hand Phrenologically Considered 5


Upon another occasion, from a careful consideration of the form and
size of a toe found in the Palatinate, near Eppelsheim, Cuvier was able
to determine that the animal to which it belonged was of the edentate
tribe of _Pangolins_. It was from an examination of the hand that
Cuvier decided upon the nature of the _Pterodactylus_. This curious
animal partook of the nature of both the reptile and the bird. Like
the bird, it was furnished with a long neck and a horny beak, but in
its jaws and teeth it resembled the crocodile. It had not, however,
like the bird, feathered wings without fingers to strengthen them, nor
had it a wing in which the thumb alone is free, like that of the bat.
Instead of the bony pieces of all the fingers being equally prolonged,
the second finger only was extended to a great length, and from it the
wing spread out, the other fingers being short and furnished with nails
like the toes of ordinary animals. Collini, its discoverer, supposed it
to be of marine origin; Soemmerring contended that it was a mammal; but
its true place in the animal series was first assigned to it by Cuvier,
who has satisfactorily shewn that it is in fact intermediate between a
bird and a reptile.
 
A knowledge of the form of the extremities of animals has been of great
service to palæontology in another wayin proving the existence of
certain species of animals at given periods of the earth’s formation,
from the print of their footsteps left upon the sand or other
material of the strata while it was yet in a soft state. Such traces
were first observed by Dr. Duncan in Dumfries-shire. On examining a
sandstone quarry, he found these prints not on one only, but on several
successive layers of the stone; so that they must have been made at
periods distant from each other. Similar impressions have been since
observed in the Forest marble-beds near Bath, at Hessburg in Saxony, in
the State of Connecticut, and in some other parts of the world.
 
“The marks found in Dumfries-shire, of which there were as many as
twenty-four upon a single slab, formed as it were a regular track,
with six distinct repetitions of each foot, the fore and hind feet
having left different impressions, and even the marks of the claws
being discernible. They appear to have been made by some animal of the
tortoise kind. At Hessburg the impressions were discovered in quarries
of grey and red sandstone alternating; and the marks were both larger
and more distinct than those found in Scotland. In one the hind foot
measured twelve inches in length, and the fore foot always appeared
much smaller than the hind. From this circumstance, and from the
distance between the two being only fourteen inches, it is conjectured
that the animal was a marsupial like the kangaroo, and it has been
termed by Dr. Kaup _Chirotherium_, from the supposed resemblance of the
four toes and turned-out thumb to a hand. In the State of Connecticut,
near Northampton, footsteps differing exceedingly in size have been
found in inclined strata of sandstone. They were evidently made before
it assumed its present position. The marks are always in pairs, and the
tracts cross each other like those of ducks on the margin of a muddy
pond. One is of the length of fifteen or sixteen inches, and a feathery
spur or appendage appears to have been attached to the heel, eight or
nine inches long. The distance between the steps is proportioned to
their length, but in every case the pace appears to have been longer
than that of the existing species of birds to which they approach
nearestthe ostrich, and the animal must consequently have been
proportionably larger. How much larger he was than the ostrich may be
gathered from this, that the large African ostrich has only a foot ten
inches long, less than two-thirds that of this bird, and yet stands
nine feet high. These proportions would give a height of fourteen feet
to the extinct animal.”[4]
 
The characters afforded by the foot have recently enabled Mr.
Strickland to determine that the dodo, a bird now extinct, is not
related either to the gallinaceous birds,the vulture or the ostriches
as some have conjectured,but is closely allied to the pigeons.
 
From this cursory examination of the animal world we may gather the
important conclusion, that from the structure of an extremity we may
obtain a complete insight into the entire organisation of an animal;
and thus the paws furnished with sharp retractile claws of the lion
indicate at once to a naturalist its strong teeth, its powerful
jaws, and its muscular strength of limb; while from the cleft foot
of the cow, the complicated structure of its stomach, the definite
peculiarities of its jaws, and its vegetable diet, may with equal
certainty be predicated.
 
Thus, as Paley justly observes, “In the swan, the web foot, the spoon
bill, the long neck, the thick down, the graminivorous stomach, have
all a relation to one another, inasmuch as they all concur in one
design, that of supplying the occasions of an aquatic fowl, floating
upon the surface of shallow parts of water, and seeking its food at
the bottom. Begin with any one of these peculiarities of structure, and
observe how the rest follow it. The web foot qualifies the bird for
swimming, the spoon bill enables it to graze. But how is an animal,
floating upon the surface of pools of water, to gaze at the bottom
except by the mediation of a long neck? And a long neck is accordingly
given to it. Again, a warm-blooded animal, which was to pass its life
upon water, required a defence against the coldness of that element.
Such a defence is furnished to the swan in the muff in which its body
is wrapped. But all this outward apparatus would have been in vain if
the intestinal system had not been suited to the digestion of vegetable
substances.”[5]
 
And, again, of the mole: “The form of the feet fixes the character of
the animal. They are so many shovels; they determine its action to
that of rooting in the ground; and every thing about its body agrees
with this destination. The cylindrical figure of the mole, as well as
the compactness of its form, arising from the terseness of its limbs,
proportionally lessens its labour; because, according to its bulk, it
thereby requires the least possible quantity of earth to be removed for
its progress. It has nearly the same structure of the face and jaws
as a swine, and the same office for them. The nose is sharp, slender,
tendinous, strong; with a pair of nerves going down to the end of it.
The plush covering, which, by the smoothness, closeness, and polish of
the short piles that compose it, rejects the adhesion of almost every
species of earth, defends the animal from cold and wet, and from the
impediment which it would experience by the mould sticking to its body.
From soils of all kind the little pioneer comes forth bright and clean.
Inhabiting dirt, it is of all animals the neatest.”
 
 
 
 
CHAPTER IV.
 
“Some animals have horns, some have hoofs, some talons,
some claws, some spurs and beaks; man hath none of all
these, but is weak and feeble, and sent unarmed into the
world. Why?a hand, with reason to rise it, supplies the
place of all these.”RAY.
 
FORM OF EXTREMITIES DIFFERS IN INDIVIDUALS OF THE SAME SPECIES.
 
 
Sir J. Barrow states of the Hottentot that there is not an animal among
the numbers that range the wilds of Africa, if he be at all acquainted
with it, the print of whose foot he cannot distinguish. The print of
any of his companions’ feet he would single out among a thousand.
That particular species of animals can be distinguished by their feet
appears, then, an undoubted fact; and it is not less true than that
modifications in the form of the extremities are met with among animals
of the same species. Thus the male frog is distinguished from the
female by the presence of a more fully-developed thumb and the addition
of a velvety, cushion-like substance to its outer surface, by means
of which he is enabled to grasp the latter more securely, and ensure
the fecundation of the eggs. The land-frog (_Hyla_) differs from the
common frog (_Rana_) in possessing a viscous disc at the extremity of
each toe, so that this animal can readily mount the branches of trees
in search of prey. The courage of the falcon is estimated by the form
and disposition of the wing feathers, and that of the fighting cock by
the conformation of his foot. But it is to the hand of man,the emblem
of his vast superiority over all the lower animals, that we would more
particularly invite attention. The hand of man, like the appendages
to the trunk of animals, has a certain definite relation with his
whole organisation. As Sir C. Bell observes, “The possession of an
instrument like the hand implies that there must be a great part of the
organisation which strictly belongs to it concealed. The hand is not
a thing appended, or put on to the body, like an additional movement
in a watch; but a thousand intricate relations must be established
throughout the whole frame in connexion with it.”
 
The form of the hand, like that of the entire body, is materially
influenced by age, sex, and race; and it is not less affected by the
particular kind of organisation, the mental disposition, and the
temperament of the individual.
 
_Age._In the minute germ, or embryo of a month, the form of the hand
resembles that of one of the lower animals. It puts on the appearance
rather of a respiratory organ than of an instrument of prehension,
and, being completely destitute of fingers, presents a great analogy
in form with the fin of a fish. As the little being increases in size,
the fingers become gradually developed. They at first appear as small
bud-like projections attached to the perfectly-formed palm. By degrees
the several pieces of the fingers become more and more elongated,
and at length attain their perfect length and shape; though, even at
birth, the relative size of the palm, compared with the fingers, is
considerably greater than in the adult. During infancy and childhood
the hand retains, to a certain extent, the same character, the hand
of the child being soft and thick, with a broad palm and short
rudimentary fingers. With the period of puberty it attains its perfect
developement, and acquires characters which it preserves throughout
manhood. As old age creeps on the hand loses its softness and pliancy,
it becomes hard and insensible, and its vigour, like that of the
mind, may be said to be gone. “Le cal de la main, presque toujours,
jette une ombre sur l’esprit,” says D’Arpentigny. Politics, science,
literaturewhatever active intellectual pursuit the mind formerly
delighted in, commences at this period of life to lose its former
charm, to be succeeded by a love of quiet rural occupation. In the
language of the author just quoted, “It is when our stiffened hands,
become, as it were, ossified and nearly insensible, afford a faithful
image of our impoverished intelligence, that we are the most ruled by
this mania for agricultural pursuits.”
 
_Sex._The sexes differ as much in the form of their hands as they
do in the figure of the skeleton, and in the general habit and
conformation of the entire body. As Carus observes, “He must be but a
superficial observer of mankind who could not at once recognise the sex
from a simple inspection of the hand. The hand of woman is smaller,
more delicate, and much more finely articulated than that of man; it
has a softer palm, and joints which are but slightly prominent. The
hand of man, on the contrary, is large, firm, and broad, is furnished
with strong projecting joints, and a hard wide palm, together with a
large thumb, with a strong convex ball or root.” Here, again, we find
the physical structure in harmony with the mental dispositionthe firm,
strong, broad hand of man being indicative of his active, energetic,
reasoning mind; and the soft, narrow, delicate hand of woman,
symbolical of her sensitive, yielding, contemplative character.

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