[1] The report of these people under different names has been the cause of the belief that they were so many separate peoples. Professor F. Blumentritt makes this mistake. “Versuch einer Ethnographie der Philippinen,” p. 33; “List of Native Tribes of the Philippines,” translated in Smithsonian Report for 1899.
[2] A brief account of the people about Binatangan was published by a missionary in 1891 in “El Correo Sino-Annamita,” Vol. XXV. “Una Visita á los Rancherias de Ilongotes” by Father Buenaventura Campa.
[3] Sibley was an American soldier from the 16th Infantry who deserted in 1900, and lived for over four years, a renegade among these people. He finally surrendered to Governor Curry, of Isabela province.
[4] Fields for seeding.
[5] Cane rafts.
[6] The Ifugao are an Igorot people inhabiting the Kiangan region. All the Igorot people practise, wherever possible, the burial of their rich and important personages in caves and artificial grottos. Burial caves occur in many places in the Philippines and have yielded a large store of jars, skulls and ornaments.