The spines of the hedgehog are movable, not fixed and resisting, but

loose in the skin, and when dry, fall backward and forward upon being

moved; yet, from the peculiar manner in which they are inserted, it

requires more force to draw them out than may be at first sight

expected. The hair of most creatures seems to arise from a bulbous root

fixed in the skin; but the spines of the hedgehog have their lower ends

fined down to a thin neck or thread, which, passing through a small

orifice in the skin, is secured on the under side by a round head like

that of a pin, or are riveted as it were, by the termination being

enlarged and rounded, and these heads are all visible when the skin

becomes dry, as if studded by small pins thrust through. Hence they are

movable in all directions, and resting upon the muscle of the creature,

must be the medium of a very sensible perception to the animal, and more

so than hair could be, which does not seem to penetrate so far as the

muscular fibre. Now this little quadruped, upon suspicion of harm, rolls

itself up in a ball, hiding his nose and eyes in the hollow of his

stomach, and thus the common organs of perception, hearing, seeing,

smelling, are precluded from action: but by the sensibility of the

spines, he seems fully acquainted with every danger that may threaten

him; and upon any attempt to uncoil himself, if these spines be touched,

he immediately retracts, assuming his globular form again, awaiting a

more secure period for retreat:—

[Illustration:

_A_, _A_, are spines of the hedgehog enlarged; _B_, a segment, to show

the numerous tubes of communication.

]

The harvest mouse (mus messorius) in some seasons is common with us,

but, like other species of mice, varies much in the numbers found. I

have seen their nests as late as the middle of September, containing

eight young ones entirely filling the little interior cavity. These

nests vary in shape, being round, oval, or pearshaped, with a long neck,

and are to be distinguished from those of any other mouse, by being

generally suspended on some growing vegetable, a thistle, a beanstalk,

or some adjoining stems of wheat, with which it rocks and waves in the

wind; but to prevent the young from being dislodged by any violent

agitation of the plant, the parent closes up the entrance so uniformly,

with the whole fabric, that the real opening is with difficulty found.

[Illustration:

_The Harvest Mouse and Nest._

]

They are the most tame and harmless of little creatures; and, taking

shelter in the sheaves when in the field, are often brought home with

the crop, and found in little shallow burrows on the ground after the

removal of a bean-rick. Those that remain in the field form stores for

the winter season, and congregate in small societies in holes under some

sheltered ditch-bank. An old one, which I weighed, was only one dram and

five grains in weight.

Mankind appear to be progressively increasing. It was an original

command of his Creator, and the animals domesticated by him, and

fostered for his use, are probably multiplied in proportion to his

requirements; but we have no reason to suppose that this annual

augmentation proceeds in a proportionate degree with the wild creatures

upon the surface of the globe; and we know that many of them are yearly

decreasing, and very many that once existed have even become extinct.

That there are years of increase and decrease ordained for all the

inferior orders of creation, common observation makes manifest. In the

years 1819 and 1820, all the country about us was overrun with mice;

they harbored under the hassocks of our coarse grasses (aira cæspitosa),

perforated the banks of ditches, occasioned much damage by burrowing

into our potato heaps, and coursed in our gardens from bed to bed even

during daylight. The species were the short-tailed meadow-mouse, and the

long-tailed garden mouse, and both kinds united in the spring to destroy

our early-sown pease and beans. In the ensuing summer, however, they

became so greatly reduced, that few were to be seen, and we have not had

any thing like such an increase since that period. It is probable that

some disease afflicted them, and that they perished in their holes, for

we never found their bodies, and any emigration of such large companies

would certainly have been observed; yet the appearance and disappearance

of creatures of this kind leads us to conclude that they do occasionally

change their habitations.

A large stagnant piece of water in an inland county, with which I was

intimately acquainted, and which I very frequently visited for many

years of my life, was one summer suddenly infested with an astonishing

number of the short-tailed water rat, none of which had previously

existed there. Its vegetation was the common products of such places,

excepting that the larger portion of it was densely covered with its

usual crop, the smooth horsetail (equisetum limosum). This constituted

the food of the creatures, and the noise made by their champing it we

could distinctly hear in the evening at many yards’ distance. They were

shot by dozens daily; yet the survivors seemed quite regardless of the

noise, the smoke, the deaths, around them. Before the winter, this great

herd disappeared, and so entirely evacuated the place, that a few years

after I could not obtain a single specimen. They did not disperse, for

the animal is seldom found in the neighborhood, and no dead bodies were

observed. They had certainly made this place a temporary station in

their progress from some other; but how such large companies can change

their situations unobserved in their transits, is astonishing. Birds can

move in high regions and in obscurity, and are not commonly objects of

notice; but quadrupeds can travel only on the ground, and would be

regarded with wonder, when in great numbers, by the rudest peasant.[40]

That little animal the water shrew (sorex fodiens) appears to be but

partially known, but is probably more generally diffused than we

imagine. The common shrew in particular seasons gambols through our

hedge-rows, squeaking and rustling about the dry foliage, and is

observed by every one; but the water shrew inhabits places that secrete

it from general notice, and appears to move only in the evenings, which

occasions its being so seldom observed. That this creature was an

occasional resident in our neighborhood was manifest from the dead

bodies of two or three having occurred in my walks; but it was some time

before I discovered a little colony of them quietly settled in one of my

ponds, overshadowed with bushes and foliage. It is very amusing to

observe the actions of these creatures, all life and animation in an

element they could not be thought any way calculated for enjoying; but

they swim admirably, frolicking over the floating leaves of the

pondweed, and up the foliage of the flags, which, bending with their

weight, will at times souse them in the pool, and away they scramble to

another, searching apparently for the insects that frequent such places,

and feeding on drowned moths (phalæna potamogeta) and similar insects.

They run along the margin of the water, rooting amid the leaves and mud

with their long noses for food, like little ducks, with great

earnestness and perseverance. Their power of vision seems limited to a

confined circumference. The smallness of their eyes, and the growth of

the fur about them, are convenient for the habits of the animal, but

impediments to extended vision; so that, with caution, we can approach

them in their gambols, and observe all their actions. The general

blackness of the body, and the triangular spot beneath the tail, as

mentioned by Pennant, afford the best ready distinction of this mouse

from the common shrew. Both our species of sorex seem to feed by

preference on insects and worms; and thus, like the mole, their flesh is

rank and offensive to most creatures, which reject them as food. The

common shrew, in spring and summer, is ordinarily in motion even during

the day from the sexual attachment, which occasions the destruction of

numbers by cats, and other prowling animals; and thus we find them

strewed in our paths, by gateways, and in our garden walks, dropped by

these animals in their progress. It was once thought that some

periodical disease occasioned this mortality of the species; but I think

we may now conclude that violence alone is the cause of their

destruction in these instances. The bite of this creature was considered

by the ancients as peculiarly noxious, even to horses and large cattle,

and a variety of the most extraordinary remedies for the wound, and

preventives against it, are mentioned by Pliny and others. The

prejudices of antiquity, long as they usually are in keeping possession

of the mind, have not been remembered by us; and we only know the hardy

shrew now as a perfectly harmless animal, though we still retain a name

for it expressive of something malignant and spiteful.

I think we have reason for suspecting that a shrew new to Britain exists

in this neighborhood. A pale blue shrew (sorex Daubentonii? Cuvier) has

been seen about the margins of our reenes, and the deep marsh ditches

cut for draining the water from the low lands of the Severn; and

something of the same kind, in a half-digested state, has been found in

the stomach of the heron. If it exist with us, a similar tract of land

in more fenny countries may contain it plentifully, though it has as yet

escaped detection.

The mole,[41] want, mouldwarper or mouldturner (talpa europea), is

common with us, as it appears to be in most places; and no creature

gives more certain indication of its presence, haunting, from

preference, such places as its predecessors have done, though years may

have intervened since they were frequented, and rains, and the treading

of heavy cattle, have compressed to solid earth the ancient runs; and

however assiduously we may destroy them, should they appear again, it

will probably be in the same places that have been formerly perforated

by others. The earth that these animals eject from their runs, being

obtained from very near the surface, and finely pulverized, has tempted

me more than once to have it collected for my green-house plants, but

not with the success that I had conjectured. Some persons have advocated

the cause of moles, as being beneficial to vegetation, by loosening the

soil about the roots of plants. Evelyn and others, again, censure them

as injurious creatures; and there is a strange narration in Buffon,

accusing them of eating all the acorns of a newly-set soil.[42] I am not

aware of any benefit occasioned by their presence; their warpings

certainly give our pastures in the spring a very unsightly appearance,

and in grounds designed to be mowed, occasion much trouble, by obliging

us frequently to spread and remove them; and in newly-sown corn-lands,

they disturb by their runnings the earth at the roots of the grain. But,

perhaps, these trifling complaints, these almost imaginary grievances,

are the only evils that can be attributed to them. In those wild

creatures that are not immediately applicable to our use or amusement,

we are more generally inclined to seek out their bad than their good

qualities; and though I cannot produce any instance in which the utility

of the mole is manifested, yet it is reasonable to conclude, that they

are eminently so, either directly or collaterally, nature having

provided in an especial manner for a constant supply,[43] and their

increase is prodigious when they are not molested. I have killed for two

years in succession, between forty and fifty each season, in a very few

acres of ground; and notwithstanding all our stratagems for their

destruction, and the ease with which they are entrapped, still plenty

always remain to recruit our annual waste of them. These creatures are

supposed to have a very imperfect vision, and, like insects, have not

any external ear, or manifest organ through which sounds can be

received; yet we can in no way for a moment suppose that they have been

created with any deficiency of power to accomplish all the objects of

their being, but that every possible exigency has been provided for.

Perceptions may be conveyed in very many instances by intelligences

unknown to us, and unquestionably are so. The defect of one power is

frequently supplied by the increased activity of another; and the sense

of smelling in the mole must be unusually acute, to enable it to pursue

and capture its prey with the facility that it does. Its sole food, we

believe, is worms; and these sensitive creatures retire immediately upon

the smallest moving of the earth in which they reside. Now, as it

follows them through all their meanderings, in which neither eyes nor

ears would assist it, a fine sense of smelling seems necessary to enable

it to catch them; and that its success is equal to its wants, and that

it feeds plentifully, is manifest by the excellent condition in which

the mole is at all seasons of the year. It will penetrate banks of earth

after worms lodged in their interior, hunt for them in the richest parts

of the field, or on the edges of dung-heaps: in all which pursuits some

unknown faculties may direct it; but no sense, that we are acquainted

with, could promote its objects so effectually as that of smell. My

talparius, a very skilful capturer of these animals, is so sensible of

the power that moles are gifted with of readily discriminating smells,

that his constant practice is, to draw the body of a captured animal

through his traps, and the adjoining runs, and passages, to remove all

suspicious odors, which might arise from the touch of his fingers. Its

feeling, too, must be acute; as, when casting up the earth, it is

sensible of the pressure of a very gentle foot; and, unless our

approaches are conducted with great caution, it ceases from its

operation, and instantly retires. Should I be censured for needless

prolixity in detailing these sensations of a common mole, and “telling

of the mouldwarp and the ant,” I trust forgiveness may be granted me, as

endeavoring to remove all conceptions, should they exist, that any

thing, however vile and worthless it may seem to be, could be created

with powers or means inadequate to supply its wants. Whoever will

examine the structure of the body of a mole will, perhaps, find no

creature more admirably adapted for all the purposes of its life. The

very fur on the skin of this animal manifests what attention has been

bestowed upon the creature, in providing for its necessities and

comforts. This is singularly, most impalpably, fine, yielding in every

direction, and offering no resistance to the touch. By this construction

the mole is in no degree impeded in its retreat from danger while

retiring backwards, as it always does upon suspicion of peril, not

turning round, which the size of its runs does not permit, its tail

foremost, until it arrives at some collateral gallery, when its flight

is head foremost, as with other creatures. If this fur had been strong,

as in the rat, or mouse, in these retreats for life it would have doubly

retarded the progress of the creature; first by its resistance, and then

acting as a brush, so as to choke up the galleries, by removing the

loose earth from the sides and ceilings of the arched ways; thus

impeding at least, if not absolutely preventing, retreat; but the

softness of the fur obviates both these fatal effects.

The construction of the hair and fur of different creatures is very

various and beautiful; and if we believe in the beneficence of the All-

wise Creator, we must conclude that such peculiar fabrications were

resorted to for the purpose of being immediately useful, or as necessary

to the condition of the animal. In a mere sketch like this, it would

conduct me infinitely beyond my intentions, to enumerate the many

varieties of hair that are rendered manifest by the microscope; but

three or four may be mentioned. The fur or clothing of the mole is

internally composed of collateral bars. In man the hairs have at times a

central tube, for the conveyance of medullary matter, as in bones, or

some nutriment analogous to it; but in the mole there appears to be no

communication with the body of the animal, unless the perspirable matter

is conducted alternately from side to side along the bars. The fur of

the bat has knots like the rudiments of branches. The hairs of the

hamster mouse have a central perforation, apparently uninterrupted

throughout their whole length. Some of the caterpillars (callimorpha

caja) have spines proceeding from the hair that invests their

bodies.[44] All these, and the other various contrivances so manifest in

the coverings of animals, are probably designed to convey off the

perspirable fluids conducive to health in an appropriate manner; to

discharge the superabundant heat, and keep the body temperate in some

cases: in others, again, to retard perspiration, and thus augment the

warmth, by every possible gradation, or to increase the sensibility and

perceptions of the animal. Many instances of these effects and

modifications might be advanced, deserving a more extensive

consideration.

The smell of the flesh of the mole is remarkably rank and offensive, as,

from the nature of its food, might be expected; and it taints the

fingers, which have touched it, with its peculiar odor, so that one

washing does not remove it. It is reported of a late very eccentric

nobleman, but with what truth I do not know, who essayed himself the

flavor of every living thing, even to the eating of the large dew-worm,

that the mole alone remained untasted by him, his stomach recoiling with

disgust at the nauseous smell of the flesh of this creature. Foxes eat

moles, and will at times dig out the traps containing them. The brown

owl, too, feeds on them, when it can meet with them outside of their

runs hunting after dew-worms; and probably the smaller vermin do the

same: but the cat and the dog turn from them with manifest aversion as

food; though they will hunt and kill them as objects of the chase.

These animals, we might suppose, while in their subterranean dwellings,

would be secure from all injury by such as generally pursue their prey

upon the surface of the earth; but I have several times known the weasel

caught in the mole-traps, making it manifest, that it hunts after the

mole for its food, and in doing so, according to our comprehensions,

must encounter infinite danger from suffocation; but it is more probable

that so active a creature as the weasel is endowed with powers to

accomplish its object with impunity, which we are not acquainted with.

During the course of a life passed much in the country, and

perambulating the woods, the hedges, and the fields, I have contracted

almost insensibly an acquaintance with the creatures that frequent them.

Some have engaged my attention by their actions and manners; others have

interested me by their innocency, and the harmlessness of their lives;

and, perhaps, there is some little partial bearing toward others from

long association, or from unknown, undefined causes. I tolerate, in

despite of all their noise, and all their litter, a colony of rooks,[45]

which have taken a liking to some tall elms near my dwelling. Not being

ancient denizens there, they can claim no hereditary rights; but their

contrivances, their regularity, and even their squabbles, are amusing;

and, perhaps, there is mingled with this some little compassion for

these dark, half-domesticated families of the grove, driven by the ax

from an old abode, which may influence my forbearance.

The hedge-sparrow, or shufflewing, (motacilla modularis), is a prime

favorite. Not influenced by season or caprice to desert us, it lives in

our homesteads and our orchards through all the year, our most domestic

bird. In the earliest spring it intimates to us by a low and plaintive

chirp, and that peculiar shake of the wing, which at all times marks

this bird, but then is particularly observable, the approach of the

breeding season; for it appears always to live in pairs, feeding and

moving in company with each other. It is nearly the first bird that

forms a nest; and this being placed in an almost leafless hedge, with

little art displayed in its concealment, generally becomes the booty of

every prying boy, and the blue eggs of the hedge-sparrow are always

found in such numbers on his string, that it is surprising how any of

the race are remaining, especially when we consider the many casualties

to which the old birds are obnoxious from their tameness, and the young

that are hatched, from their situation. The plumage of this motacilla is

remarkably sober and grave, and all its actions are quiet and

comformable to its appearance. Its song is short, sweet, and gentle.

Sometimes it is prolonged; but generally the bird perches on the summit

of some bush, utters its brief modulation, and seeks retirement again.

Its chief habitation is some hedge in the rick-yard, some cottage

garden, or near society with man. Unobtrusive, it does not enter our

dwellings like the redbreast, but picks minute insects from the edges of

drains and ditches, or morsels from the door of the poorest dwelling in

the village. As an example of a household or domestic bird, none can be

found with better pretensions to such a character than the hedge-

sparrow.

I always hear with delight the earliest chirpings of that pretty

harbinger of spring, the willow wren (motacilla trochillus), trilling

its wild and gleeful “chiffchaffs,” as it chases the insects round the

branches of the old oak in the copse, or on the yellow catkins of the

sallow, itself almost like a colored catkin too. But this elegant little

bird is noticed only by the lovers and frequenters of the country; it

animates the woods by its constant activity; the frequent repetition of

its most cheerful modulation contributes essentially to the pleasing

harmony of the grove; and its voice is most sprightly and frequent, when

the morning is illumined with one of those mild, walk-enticing gleams,

that render this short season the most delightful of our year. It builds

its nest, and rears its young with us; visits our gardens, but is no

plunderer there, living almost entirely upon insect food; and its whole

life is passed in harmlessness and innocence. As it is the earliest that

arrives, so it is the last, I believe, of our feathered choir that

leaves us, except a few lingering, irresolute swallows; and we hear it

piping its final autumnal farewell even in October at times, and

sporting with hilarity and joy, when all its congeners are departed.

Country rambles in England · 第 9 / 29 段