When the Field-mouse is deprived of the food which it loves best, it finds a subsistence among the trees. Whenever mice can discover a newly-planted sapling, they hold great revel upon it, eating away the tender young bark as high as they can reach, and consequently destroying the tree as effectually as if it were cut down. Even when the young trees fail them, and no tender bark is to be had, the Field-mice can still exert their destructive powers. They will then betake themselves to the earth, burrow beneath its surface, and devour the young rootlets of the forest trees. All botanists know that a healthy tree is continually pushing forward fresh roots below the ground, in order to gain sufficient nourishment to supply the increasing growth above. If, therefore, these young roots are destroyed, the least harm that can happen to the tree is that its further growth is arrested; while, in many cases, the tree, which cannot repair the injuries it has received, droops gradually, and finally dies. Even in this country, the Field-mouse has proved itself a terrible enemy to the agriculturist, and has devastated considerable tracts of land. So much for the destructive powers of the Field-mouse, and the next point to be considered is its abundance. Nearly all the rats and mice are singularly prolific animals, producing a considerable number at a brood, and having several broods in a season. The Field-mouse is by no means an exception to the general rule, but produces as many young in a season as any of the Mice. Not only is it formidable from its numbers, but from the insidious nature of its attacks. Any one can see a rabbit, a hare, or even a rat; but to see a Field-mouse is not easy, even when the little creatures are present in thousands. A Field-mouse never shows itself except from necessity, its instinct teaching it to escape the observation of its many furred and feathered enemies. Short-legged and soft-furred, it threads its noiseless way among the herbage with such gentle suppleness that scarcely a grass-blade is stirred, while, if it should be forced to pass over a spot of bare ground, the red-brown hue of its fur prevents it from being detected by an inexperienced eye. Generally the Field-mouse is safe from human foes, and has only to dread the piercing eye and swift wings of the hawk, or the silent flight and sharp talons of the owl. Although there can be no doubt that the Field-mouse is one of the animals to which the name of Akbar is given, it is probable that many species were grouped under this one name. Small rodents of various kinds are very plentiful in Palestine, and there are several species closely allied to the Field-mouse itself.