Albino-Weasels, with pure white fur and pink eyes, have been recorded several times, but they appear to be very rare. *Polecat* (_Mustela putorius_, Linn.). In contradistinction to the Sweet-mart already described, our forefathers called the Polecat or Fitchew the Foumart or Foul Marten, because the secretion from the glands under the tail is intolerably acrid and mephitic; on this account the fur is considered useless, the odour attaching to it permanently. Like the Marten, the Polecat, thanks mainly to the unremitting vigilance of the gamekeeper, has become very rare in this country. In this case there can be no doubt that the keeper is fully justified, for there is no more destructive beast among our native carnivora. It is still common throughout Europe, as far north as central Scandinavia. Though in general appearance similar to the Marten, the Polecat is smaller, has shorter legs and a shorter tail, and differs in colour. The entire length is about two feet, but of this the bushy tail accounts for about seven inches. Its long coarse fur is dark brown on the upper parts of the body, and black on the under surface. The head, also, is blackish, relieved with white marks about the muzzle and between the ears and eyes. The weight of a full-grown Polecat is about six pounds. Its usual habitat is a wood or copse, not too far from a plunderable farm; but it has no fixed type of dwelling, taking advantage of any hole, be it a fox-earth, a rabbit-burrow, or a natural rock crevice; often indeed a woodstack in the farmyard may be utilised. On the approach of winter it looks out for some deserted building where it can find shelter. Unlike the Marten, it is not much of a climber, and does not exhibit the sprightly agility of that species. It is a nocturnal hunter, and is an adept at finding entrance to a hen-house, where it has been known to kill off every one of the inmates in a night, though it could only make off with a solitary hen. Although it may consume the brains of its victims on the spot, the bodies are always carried to its lair for more leisured consumption. Its food includes eggs of all kinds, rabbits, rats, mice, birds, fish, frogs, lizards, and snakes, including the viper, whose poison is considered to be innocuous in the blood of the Polecat. When it gets into the poultry yard, the superior size of some of its victims does not alarm it; a goose will serve its turn as well as a chicken. Bell tells of sixteen turkeys that were killed in one night by a single Foumart; though, of course, it could not drag away one of the carcasses. Its usual method of carrying smaller prey is to grip them by the middle of the back, much as a retriever carries game. In addition to the remains of hares, rabbits, numerous birds, and several eels, C. St. John found in the larder of a she-polecat the bodies of three kittens which he knew to have been drowned at least a quarter of a mile away.