THE Mole, though generally a despised and persecuted animal, is nevertheless useful to the husbandman in being the natural drainer of his land and destroyer of worms. To other inferior animals he is a sapper and miner, forming for them their safe retreats and well-secured dormitories.

The economy of the Mole has been much controverted among naturalists. It is found throughout the greater part of Europe. We are overrun with it in most parts of England and Wales; but it does not appear to have been found in the northern extremity of Scotland, and there is no record of its having been seen in the Orkney Isles, Zetland, or Ireland. Its most diligent and instructive historian is Henri Le Court, who, flying from the terrors that came in the train of the French Revolution, betook himself to the country, and from being the attendant on a Court, became the biographer of this humble animal. M. Geoffroy St. Hilaire, the celebrated French naturalist, visited Le Court for the purpose of testing his observations, and appears to have been charmed by the facility and ingenuity with which Le Court traced and demonstrated the subterraneous labours of this obscure worker in the dark.

We shall first briefly describe the adaptation of its structure to its habits. The bony framework is set in motion by very powerful muscles, those of the chest and neck being most vigorous. The wide hand, which is the great instrument of action, and performs the offices of a pickaxe and shovel, is sharp-edged on its lower margin, and when clothed with the integuments the fingers are hardly distinguishable. The muzzle of the Mole is evidently a delicate organ of touch, as are also the large and broad hands and feet; and the tail has much sensitiveness to give notice to the animal of the approach of any attack from behind. Its taste and smell, especially the latter, are very sensitive. Its sight is almost rudimentary. The little eye is so hidden in the fur that its very existence was for a long time doubted. It appears to be designed for operating only as a warning to the animal on its emerging into the light; indeed, more acute vision would only have been an encumbrance. If the sight be imperfect, the sense of hearing is very acute, and the tympanum very large, though there is no external ear, perhaps because the earth assists considerably in vibration. The fore-feet are inclined sideways, so as to answer the use of hands, to scoop out the earth to form its habitation or pursue its prey, and to fling all the loose soil behind the animal. The breastbone in shape resembles a ploughshare. The skin is so tough as only to be cut by a very sharp knife. The hair is very short and close-set, and softer than the finest silk; colour black; some spotted and cream-coloured. This hair is yielding; had it been strong, as in the rat or mouse, it would doubly have 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 galleries.

It is supposed that the verdant circles so often seen in grass ground, called by country people fairy rings, are owing to the operations of Moles: at certain seasons they perform their burrowings in circles, which, loosening the soil, gives the surface a greater fertility and rankness of grass than the other parts within or without the ring. The larger mole-hills denote the nests or dens of the Mole beneath.

The feeling of the Mole is so acute that when casting up the earth, it is sensible of very gentle pressure; hence mole-catchers tread lightly when in quest of Moles; and unless this caution is used the Mole ceases its operation, and instantly retires. Again, so acute is the smell, that mole-catchers draw the body of a captured Mole through their traps and the adjoining runs and passages to remove all suspicious odours which might arise from the touch of their fingers.

During summer the Mole runs in search of snails and worms in the night-time among the grass, which pursuit makes it the prey of owls. The Mole shows great art in skinning a worm, which it always does before it eats it, by stripping the skin from end to end, and squeezing out the contents of the body. It is doubtful whether any other animal exists which is obliged to eat at such short intervals as the Mole, ten or twelve hours appearing to be the maximum of its fasting; at the end of that time it dies. Cuvier tells us that if two Moles are shut up together without food, there will shortly be nothing left of the weakest but its skin, slit along the belly! Buffon accuses Moles of eating all the acorns of a newly-set soil. Its voracity makes the Mole a great drinker: a run is always formed to a pond or ditch as a reservoir; when it is too distant, the animal sinks little wells, which have sometimes been seen brimfull.

We now return to Le Court's experiments with Moles, which are very interesting. To afford proof of the rapidity with which the Mole will travel along its passages, Le Court watched his opportunity, and when the animal was on its feed at one of the most distant points from its sanctuary or fortress, to which point the Mole's high road leads. Le Court placed along the course of that road, between the animal and the fortress, several little camp colours, so to speak, the staff of each being a straw, and the flag a bit of paper, at certain distances, the straws penetrating down into the passage. Near the end of this subterraneous road he inserted a horn, the mouthpiece of which stood out of the ground. When all was ready, Le Court blew a blast loud enough to frighten all the Moles within hearing. Down went the little flags in succession with astonishing velocity, as the terrified Mole, rushing along towards his sanctuary, came in contact with the flag-straws; and the spectators affirmed that the Mole's swiftness was equal to the speed of a horse at a good round trot.

To test its amount of vision, Le Court took a spare water-pipe, or gutter, open at both ends. Into this pipe he introduced several Moles successively. Geoffroy St. Hilaire stood by to watch the result at the further end of the tube. As long as the spectators stood motionless the introduced Mole made the best of his way through the pipe and escaped; but if they moved, or even raised a finger, the Mole stopped, and then retreated. Several repetitions of this experiment produced the same results.

In the domain of the Mole, the principal point is the habitation, or fortress, constructed under a considerable hillock raised in some secure place, often at the root of a tree, or under a bank. The dome of the fortress is of earth, beaten by the Mole-architect into a compact and solid state. Inside is formed a circular gallery at the base, which communicates with a smaller upper gallery by means of five passages. Within the lower gallery is the chamber or dormitory, which has access to the upper gallery by three passages. From this habitation extends the high road by which the proprietor reaches the opposite end of the encampment; the galleries open into this road, which the Mole is continually carrying out and extending in his search for food; this has been termed the hunting-ground. Another road extends, first downwards, and then up into the open road of the territory. Some eight or nine other passages open out from the external circular gallery. From the habitation a road is carried out, nearly straight, and connected with the encampment and the alleys leading to the hunting-ground which open into it on each side. In diameter the road exceeds the body of a Mole, but its size will not admit of two Moles passing each other. The walls, from the repeated pressure of the animal's sides, become smooth and compact. Sometimes a Mole will lay out a second or even a third road; or several individuals use one road in common, though they never trespass on each other's hunting-grounds.

If two Moles should happen to meet in the same road, one must retreat into the nearest alley, unless they fight, when the weakest is often slain. In forming this tunnel the Mole's instinct drives it at a greater or less depth, according to the quality of the soil, or other circumstances. When it is carried under a road or stream, a foot and a-half of earth, or sometimes more, is left above it. Then does the little engineering Mole carry on the subterraneous works necessary for his support, travelling, and comfort; and his tunnels never fall in. The quality or humidity of the soils which regulates the abundance of earth-worms, determines the greater or less depth of the alleys; and when these are filled with stores of food the Mole works out branch alleys.

The main road communicating with the hunting-grounds is of necessity passed through in the course of the day; and here the mole-catcher sets his traps to intercept the Mole between his habitation and the alley where he is carrying on his labours. Some mole-catchers will tell you the hours when the Moles move are nine and four; others that near the coast their movements are influenced by the tides. Besides the various traps which are set for Moles, they are sometimes taken by a man and a dog; when the latter indicates the presence of a Mole, the man spears the animal out as it moves in its run. Pointers will stop as steadily as at game, at the Moles, when they are straying on the surface.

The Mole is a most voracious animal. Earthworms and the larvÆ of insects are its favourite food; and it will eat mice, lizards, frogs, and even birds; but it rejects toads, even when pressed by hunger, deterred, probably, by the acrid secretions of their skin. Moles are essentially carnivorous; and when fed abundantly on vegetable substances they have died of hunger.

During the season of love, at which time fierce battles are fought between the males, the male pursues the female with ardour through numerous runs wrought out with great rapidity. The attachment appears to be very strong in the Moles. Le Court often found a female taken in his trap and a male lying dead close to her. From four to five is the general number of young. The nest is distinct, usually distant from the habitation. It is constructed by enlarging and excavating the point where three or four passages intersect each other; and the bed of the nest is formed of a mass of young grass, root fibres, and herbage. In one nest Geoffroy St. Hilaire and Le Court counted two hundred and four young wheat-blades.

M. St. Hilaire describes the pairings, or as he calls it, "the loves of the Moles." As soon as the Mole has finished the galleries he brings his mate along with him, and shuts her up in the bridal gallery, taking care to prevent the entrance of his rivals: in case of a fight they enlarge the part of the gallery where they are met; and the victory is decided in favour of him who first wounds his adversary before the ear. The female, during the fight, is shut up in the bridal gallery, so as to be unable to escape; for which purpose, however, she uses all her resources in digging, and attempts to get away by the side passages. Should she succeed the conqueror hastens to rejoin his faithless mate, and to bring her back into his galleries. This manoeuvre is repeated as often as other males enter the lists. At length the conqueror is recognised, and his mate becomes more docile. The pair work together and finish the galleries; after which the female digs alone for food. As soon as the galleries are formed, the male conducts his mate to a certain point, and from this time the female no longer digs in the solid earth, but towards the surface, advancing by merely separating the roots of the grass.

The Mole is a great friend to the farmer; but there are places in which he is a public enemy. He is not a vegetable feeder, and he never roots up the growing corn in spring-time, except when he is after grubs, snails, and wire-worms. It has been calculated that two Moles destroy 20,000 white worms in a year. He is very destructive to under drains; and where the land is low we are in danger of a deluge from his piercing holes in the drain-banks. Thus it would be madness not to extirpate Moles in those places where the waters, in drains or rivers, are above the level of the lands around, especially when the banks are made of sand or earth of loose texture.

The persecution of Moles in cultivated countries amounts almost to a war of extermination. The numbers annually slaughtered are enormous. A mole-catcher, who had followed the craft for thirty-five years, destroyed from forty to fifty thousand Moles. But all Mole exterminators must yield to Le Court, who, in no large district, took, in five months, six thousand of them. Moles are good swimmers, and their bite is very sharp; their attacks are ferocious, and they keep their hold like a bull-dog.

The Shrew Mole of North America resembles the European Mole in its habits. Dr. Goodman describes it as most active early in the morning, at mid-day, and in the evening; and they are well known in the country to have the custom of coming daily to the surface exactly at noon. We read of a captive Shrew Mole which ate meat, cooked or raw, drank freely, and was lively and playful, following the hand of his feeder by the scent, burrowing for a short distance in the loose earth, and after making a small circle, returning for more food. In eating he employed his flexible snout to thrust the food into his mouth, doubling it so as to force it directly backwards, as described in Dr. Richardson's "North American Zoology."

James Hogg, the Ettrick Shepherd, remarks, in his usual impressive manner:—"The most unnatural persecution that ever was raised in a country is that against the Mole—that innocent and blessed little pioneer, who enriches our pastures annually with the first top-dressing, dug with great pains and labour from the fattest of the soil beneath. The advantages of this top-dressing are so apparent that it is really amazing how our countrymen should have persisted, for nearly half a century, in the most manly and valiant endeavours to exterminate the Moles! If a hundred men and horses were employed on a pasture farm of from fifteen hundred to two thousand acres, in raising and driving manure for a top-dressing of that farm, they would not do it so effectually, so neatly, or so equally as the natural number of Moles. In June, July, and August, the Mole-hills are all spread by the crows and lambs—the former for food, and the latter in the evenings of warm days after a drought has set in. The late Duke of Buccleuch was the first who introduced Mole-catching into Scotland."