[22] Kloss, In the Andamans and Nicobars, p. 227 sq.
[23] Ling Roth, Natives of Sarawak, i. 66-68, 82. Boyle, Adventures among the Dyaks of Borneo, p. 215. Selenka, Sonnige Welten, p. 47.
[24] Bock, Head-Hunters of Borneo, p. 209.
[25] Kükenthal, Forschungsreise in den Molukken, p. 188.
[26] Junghuhn, Battaländer auf Sumatra, ii. 239.
[27] Crawfurd, History of the Indian Archipelago, i. 50.
[28] Raffles, History of Java, i. 248.
[29] Riedel, De sluik- en kroesharige rassen tusschen Selebes en Papua, p. 96 (Serangese). St. John, Life in the Forests of the Far East, ii. 322 (Malays of Sarawak).
[30] Marsden, History of Sumatra, p. 209 (natives of the interior of Sumatra). Riedel, op. cit. p. 314 (natives of the Luang-Sermata group). Steller, De Sangi-Archipel, p. 23.
[31] Forbes, A Naturalist’s Wanderings in the Eastern Archipelago, p. 320.