Mourning garb is an essential part of the observances. Its object has been much debated by anthropologists. There seems little doubt that its first object is to distinguish those who are under the taboo from other persons: it is the sign of the plague. Professor Frazer {236} many years ago laid it down “that mourning costume is usually the reverse of that in ordinary life.” He cited (among others) the practice at Rome for the sons of the deceased to walk at the funeral with their heads covered, the daughters with their heads uncovered, and that in Greece for men and women during the period of mourning to invert their usual habits of wearing the hair, the ordinary practice of men being to cut it short and that of women to wear it long.[236.1] The accuracy of the generalization might be illustrated from examples all over the world. The Arapaho, who wear their hair long and braided, when in mourning unbraid it and wear it unbound. Sometimes they cut it. They wear old clothing, and do not paint themselves as they are accustomed to do.[236.2] Among the Bangala of the Upper Congo men sometimes wear women’s dresses instead of their own, and shave half the hair of the head, or shave it in patches, and they rub clay on their bodies. Widows dress in only a few leaves or go stark naked, but with dirt or clay rubbed on the body. For three months after the funeral and a period of retirement in the bush they wear long, untidy-looking grass cloths.[236.3] When following a corpse to the grave Ainu mourners wear their coats inside out and upside down. An Ainu’s hair is never cut, except on the death of husband or wife; and then cutting is obligatory.[236.4] Among the Iban of Sarawak a widow’s mourning lasts until the final ceremonies, sometimes two years after the death. During that time she may not wear any ornament, her dress must be plain and old; and she is not allowed to pull out her eyelashes and eyebrows, nor to use soap for {237} washing. Whatever acquaintance she may have in ordinary life with soap, the prohibition to pull out her eyelashes and eyebrows is a prohibition of the last and most seductive touches of her toilet: no Iban woman would think of wearing eyelashes and eyebrows if she were not a widow in mourning.[237.1] By reversing the usual costume the mourner is distinguished from others, notice is given to the world of the taboo that binds him.