The Bakäiri, who go completely naked, have no “private parts.” They jest about these parts verbally and pictorially with complete indifference. It would be ridiculous for this reason to regard them as “indecent.” The onset of puberty is celebrated in the case of both sexes by noisy popular festivals, in which the “private parts” receive a demonstrative and joyful attention. A man who wishes to inform a stranger that he is the father of one of those present, a woman who wishes to declare herself to be the mother of a child, grasps the genital organs with an earnest and unconcerned demeanour, intending by this gesture to indicate that they themselves are the procreators. The cloth covering the penis of the male, and the three cornered apron of the female, are not for purposes of concealment, but are simply intended to protect the mucous membranes--as a bandage or an apron in the women, and in the men as an apparatus for the mechanical treatment of phimosis. It is only in jest that such things can be regarded as “articles of clothing,” the principal object of which is to subserve the sense of shame. Sexual excitement is not concealed by this simple covering. The red threads of the Trumai, the vari-coloured cloths of the Bororo, are adornments, by which attention is attracted to this region rather than repelled.[77] The completely naked Suyá women wash their genital organs in the river in the presence of Europeans.[78] Thus among these Caribs of Central Brazil, who are still living in the stone age, we observe in all their simplicity the results of complete nudity, and we are able to determine that this nudity entirely prevents the origination of an erotic sense of shame in our meaning of the term. The physiological factors of the sense of shame are not, taken alone, sufficiently strong to lead to the appearance of this sense in its full strength as a special psychical phenomenon. It is first in association with clothing that these physiological factors have any great significance in the production of the sense of shame.