HAWKES, E.W.: The Labrador Eskimo, Ottawa, 1916; Mathiassen, T.: Archaeology of The Central Eskimos, Copenhagen, 1927; Thomsen, T.: Implements and Artefacts of The North-East Greenlanders, Copenhagen, 1917; Tufton Mason, O.: Aboriginal American Harpoons, 1900; Collins, H.B.: Prehistoric Art of the Alaskan Eskimo, Washington D.C., 1929; Falck, R. and E.: Têtes de Harpons Eskimo, Paris, 1963; and 32 other publications of similar interest (38)