17. The best accounts we possess of the inland tribes are those of W. H. Williamson, The Mafulu, 1912, and of C. Keysser, Aus dem Leben der Kaileute, in R. Neuhauss, Deutsch Neu Guinea, Vol. III. Berlin, 1911. The preliminary publications of G. Landtmann on the Kiwai, Papuan magic n the Building of Houses, „Acta Arboenses”, Humaniora. I. Abo, 1920, and The Folk-Tales of the Kiwai Papuans, Helsmgfors, 1917, promise that he full account will dispel some of the mysteries surrounding the Gulf of Papua. Meanwhile a good semi-popular account of these natives is to be found n W. N. Beaver’s Unexplored New Guinea, 1920. Personally I doubt ery much whether the hill tribes and the swamp tribes belong to the same stock or have the same culture. Compare also the most recent contribution to his problem Migrations of Cultures in British New Guinea, by A. C. Haddon, Huxley Memorial Lecture for 1921, published by the R. Anthrop Institute. [przypis autorski]
18. See C. G. Seligman, The Melanesians of British New Guinea, Cambridge, 1910. [przypis autorski]
19. Cf. C. G. Seligman, op. cit., p. 5. [przypis autorski]
20. A number of good portraits of the S. Massim type are to be found in he valuable book ot the Rev. H. Newton, In Far New Guinea, 1914 and in he amusingly written though superficial and often unreliable booklet of the Rev. C. W. Abel (London Missionary Society), Savage Life in New Guinea (No date). [przypis autorski]
21. ipso facto (Latin) — by the very same act. [przypis edytorski]
22. See Table in the Introduction, and also Chapters XVI and XX. [przypis autorski]
23. Cf. Professor C. G. Seligman, op. cit., Chapters XL and XLII. [przypis autorski]
24. Professor C G. Seligman, op. cit., Chapters XXXV, XXXVI, XXXVII. [przypis autorski]
25. Cf. Professor C. G. Seligman, Chapters XXXVII and XXXVIII. [przypis autorski]
26. My knowledge of the Dobuans is fragmentary, derived from three short visits in their district, from conversation with several Dobu natives whom I had in my service, and from frequent parallels and allusions about Dobuan customs, which are met when doing field-work among the Southern Trobrianders. There is a short, sketchy account of certain of their customs and beliefs by the Rev. W. E. Bromilow, first missionary in Dobu, which I have also consulted, in the records of the Australasian Association for the Advancement of Science. [przypis autorski]