The same use of it has been attributed to the Irish by Camden, in “Brittania,” edition of London, 1753, vol. ii. p. 1419. His statement is quoted by Buckle: “In 1562, O’Neal, with some of his companions, came to London and astonished the citizens by their hair flowing in locks on their shoulders, on which were yellow surplices, dyed with saffron or stained with urine.”—(“Commonplace Book,” vol. ii. p. 236.) “As a substitute for alum, urine was employed.”—(“Folk-Lore of the Pennsylvania Germans,” W. J. Hoffman, M. D., in “Journal of American Folk-Lore,” 1889.) “The preparation of blue, violet, and bluish-red coloring matters from lichens by the action of the ammonia of stale urine, seems to have been known at a very early period to the Mediterranean peoples, and the existence, down almost to the present day, of such a knowledge in the more remote parts of Ireland, Scotland, and Scandinavia, renders it not improbable that the art of making such dyes was not unknown to the northern nations of Europe also.”—(“The Manners and Customs of the Ancient Irish,” Eugene O’Curry, introduction by W. K. Sullivan, London, Dublin, Edinburgh, and New York, 1873, p. 450.) PLASTER. As a plaster for the interior of dwellings, cow-dung has been used with frequency; that the employment of the ordure of an animal held sacred by so many peoples has a religious basis, is perhaps too much to say, but it will be shown, further on, that different ordures were kept about houses to ensure good luck or to avert the maleficence of witchcraft. Marco Polo has the following: (In Malabar) “there are some called Gaui, who eat such oxen as die of themselves, but may not kill them, and daub over their houses with cow-dung.”—(Marco Polo, in Pinkerton, vol. vii. p. 162.) The huts in Senegal were plastered “with cow-dung, which stunk abominably.”—(Adamson, “Voyage to Senegal,” in Pinkerton, vol. xvi. p. 611.) “The cow-dung basements around the tents” of the Mongols are spoken of by Rev. James Gilmour.—(“Among the Mongols,” London, 1883, p. 176.) “A floor is next made of soft tufa and cow-dung.”—(Livingston, “Zambesi,” London, 1865, p. 293.) Animal dung is used as a mortar by the inhabitants of Turkey in Asia living in the valley of the Tigris.—(See “Assyrian Discoveries,” George Smith, New York, 1876, p. 82.) The natives of the White Nile, the tribes of the Bari, make “a cement of ashes, cow-dung, and sand,” with which “they plaster the floors and enclosures about their houses.”—(“The Albert Nyanza,” Sir Samuel Baker, Philadelphia, 1869, p. 58. See the same author for the Latookas, idem, p. 135; and for the statement that the Obbos plaster enclosures, walls, and floors alike, see pp. 203, 262.) Pliny tells us that the threshing-floors of the Roman farmers were paved with cow-dung; in a footnote it is stated that the same rule obtains in France to this day.—(Pliny, lib. lxxviii. cap. 71: Bohn).