played with traditional actions, words and gestures, so that everyone could identify it. The best spirit actors from previous Hains were called again to impersonate spirits in later Hains. Apart from these dramatic re-enactments of mythic events, the Hain involved tests for young males for courage, resourcefulness, resisting temptation, resisting pain and overcoming fear. It also included prolonged instructional courses to train the young men in the tasks for which they would be responsible. Before European encounter, the various rites of the Hain lasted a very long time, perhaps even a year on occasion. It would end with the last fight against the "worst" spirit. Usually Hains were started when there was enough food (for example a whale was washed onto the coast), a time when all the Selk'nam from all the bands used to gather at one place, in male and female camps. "Spirits" sometimes went to female encampments to scare them, as well as moving around and acting out in ways that related to their characters. The last Hain was held in one of the missions in the early 20th century, and was photographed by missionary Martin Gusinde. It was a shorter and smaller ceremony than they used to hold. The photos show the "spirit" costumes they created and wore. Gusinde's The Lost Tribes of Tierra Del Fuego (2015) was published in English by Thames & Hudson, and in French and Spanish by Éditions Xavier Barral. Heritage Pictures of Selk'nam people taken by the missionaries are displayed at the Martin Gusinde Anthropological Museum at Puerto Williams. There are also a few books on the subject, including Selk'nam tales, collected by the missions, and a dictionary of the Selk'nam language. Due to early contact by missionaries, they collected much more information about the Selk'nam people than about other people of the region. Austrian priest and ethnologist Gusinde tried also to collect information about other local nations, but he found their numbers much reduced. He was able to write more about traditional Selk'nam culture because it was still being lived. The 2010 National Population Census in Argentina revealed the existence of 2,761 people who recognized themselves as Onas throughout the country, 294 of them in the province of Tierra del Fuego, Antarctica and the South Atlantic Islands (Land of Fire). See also Kawésqar Kawésqar language References Further reading Luis Alberto Borrero, Los Selk'nam (Onas), Buenos Aires: Galerna, 2007 Lucas Bridges,