166 The Mammalia of Essex; a Contribution towards a is of the same reddish brown tint as the upper surface of the body. An additional distinction is found in the usually smaller size of the weasel, a character, however, which is not invariable, as I have seen weasels quite the average stoat size, and full-grown stoats as small as undersized weasels. This is another of the so-called "vermin," and the weasel is destroyed whenever met with,—a great mistake, in my opinion, as its prey consists principally of the smaller mammals. Its food is not, however, confined to these, as I have found beetles, lizards, slow-worms, and other small fry in the stomachs of those I have examined. I believe it is very rare for the weasel to interfere much with game; and even if it did much damage in this respect, it could never cause half the jealousies, quarrels, and miseries produced by the excessive preservation of game. In some parts of England it is, when small, called a "mouse-hunter," and well it deserves this name. When chasing a mouse it keeps to the scent ae well as the best fox-hound, and seems quite regard- less of onlookers. I have said "keeps to the scent;" perhaps I ought to have said it never passes over the scent, even when in full gallop. The manner of its chasing a mouse, in all cases that I have observed, is by making casts diagonally across the mouse's track; and this plan of hunting, I have an idea, is not confined to the weasel. In spite of persecution this little animal is common in all parts of Essex, on the marshes especially so; and there I have found evidences in casts that it is not unfrequently eaten by herons. Mustela Erminea. The Stoat.—This bloodthirsty, active, and destructive member of a specially bloodthirsty family, is very common throughout Essex, persecution on all sides appearing to have little influence on its numbers. Its food and habits are similar to those of the weasel, but I fear I cannot defend it from the charge of being very destructive to game. Although mice and such small creatures contribute to its sustenance, still I think the larger mammals, as hares, rabbits, and rats, are its favourite prey, which it chases by scent, as most who have lived in the country will have had opportunities for observing. Hares and rabbits, after being