The White and Black were introduced later than the others. Mr. Baily says the White were principally bred from a pair imported and given to the Dean of Worcester, and which afterwards became the property of Mrs. Herbert, of Powick. White Cochins for exhibition must have yellow legs, and they are prone to green. The origin of the Black is disputed. It is said to be a sport from the White, or to have been produced by a cross between the Buff and the White. By careful breeding it has been fixed as a decided sub-variety, but it is difficult, if not almost impossible, to rear a cock to complete maturity entirely free from coloured feathers. They keep perfectly pure in colour till six months old, after which age they sometimes show a golden patch or red feathers upon the wing, or a few streaks of red upon the hackle, of so dark a shade as to be imperceptible except in a strong light, and are often found on close examination to have white under feathers, and others barred with white. The legs in all the colours should be yellow. Flesh-coloured legs are admissible, but green, black, or white are defects. In the Partridge and Grouse a slight wash, as of indigo, appears to be thrown over them, which in the Black assumes a still darker shade; but in all three yellow should appear partially even here beneath the scales, as the pink tinge does in the Buff and White birds. Cochin-Chinas being much inclined to accumulate internal fat, which frequently results in apoplexy, should not be fed on food of a very fattening character, such as Indian corn. They are liable to have inflamed feet if they are obliged to roost on very high, small, or sharp perches, or allowed to run over sharp-edged stones. They are also subject to an affection called White Comb, which is a white mouldy eruption on the comb and wattles like powdered chalk; and if not properly treated in time, will spread over the whole body, causing the feathers to fall off. It is caused by want of cleanliness, over-stimulating or bad food, and most frequently by want of green food, which must be supplied, and the place rubbed with an ointment composed of two parts of cocoanut oil, and one of turmeric powder, to which some persons add one half part of sulphur; and six grains of jalap may be given to clear the bowels. CHAPTER XI. BRAHMA-POOTRAS.