(M7) Again, at a great dancing festival celebrated by the natives of Bartle Bay, in British New Guinea, a wild mango tree plays a prominent part. The tree must be self-sown, that is, really wild and so young that it has never flowered. It is chosen in the jungle some five or six weeks before the festival, and a circle is cleared round its trunk. From that time the master of the ceremonies and some eight to twenty other men, who have aided him in choosing the tree and in clearing the jungle, become strictly holy or tabooed. They sleep by themselves in a house into which no one else may intrude: they may not wash or drink water, nor even allow it accidentally to touch their bodies: they are forbidden to eat boiled food and the fruit of mango trees: they may drink only the milk of a young coco-nut which has been baked, and they may eat certain fruits and vegetables, such as paw-paws (_Carica papaya_) and sugar-cane, but only on condition that they have been baked. All refuse of their food is kept in baskets in their sleeping-house and may not be removed from it till the festival is over. At the time when the men begin to observe these rules of abstinence, some six to ten women, members of the same clan as the master of the ceremonies, enter on a like period of mortification, avoiding the company of the other sex, and refraining from water, all boiled food, and the fruit of the mango tree. These fasting men and women are the principal dancers at the festival. The dancing takes place on a special platform in a temporary village which has been erected for the purpose. When the platform is about to be set up, the fasting men rub the stepping posts and then suck their hands for the purpose of extracting the ghost of any dead man that might chance to be in the post and might be injured by the weight of the platform pressing down on him. Having carefully extracted these poor souls, the men carry them away tenderly and set them free in the forest or the long grass.
(M8) On the day before the festival one of the fasting men cuts down the chosen mango tree in the jungle with a stone adze, which is never afterwards put to any other use; an iron tool may not be used for the purpose, though iron tools are now common enough in the district. In cutting down the mango they place nets on the ground to catch any leaves or twigs that might fall from the tree as it is being felled, and they surround the trunk with new mats to receive the chips which fly out under the adze of the woodman; for the chips may not drop on the earth. Once the tree is down, it is carried to the centre of the temporary village, the greatest care being taken to prevent it from coming into contact with the ground. But when it is brought into the village, the houses are connected with the top of the mango by means of long vines decorated with streamers. In the afternoon the fasting men and women begin to dance, the men bedizened with gay feathers, armlets, streamers, and anklets, the women flaunting in parti-coloured petticoats and sprigs of croton leaves, which wave from their waistbands as they dance. The dancing stops at sundown, and when the full moon rises over the shoulder of the eastern hill (for the date of the festival seems to be determined with reference to the time of the moon), two chiefs mount the gables of two houses on the eastern side of the square, and, their dusky figures standing sharply out against the moonlight, pray to the evil spirits to go away and not to hurt the people. Next morning pigs are killed by being speared as slowly as possible in order that they may squeal loud and long; for the people believe that the mango trees hear the squealing, and are pleased at the sound, and bear plenty of fruit, whereas if they heard no squeals they would bear no fruit. However, the trees have to content themselves with the squeals; the flesh of the pigs is eaten by the people. This ends the festival.