...The bones of many large animals lay about and among them wereseveral human skulls... 
Edgar Rice Burroughs 「Tarzan the Untamed」
...The whole Batoka country was then densely peopled, and they had a curious taste for ornamenting their villages with the skulls of strangers...
David Livingstone 「Missionary Travels and Researches in South Africa」
...At one of their ruined villages Livingstone saw five-and-forty human skulls bleaching upon stakes stuck in the ground...
David Livingstone 「Missionary Travels and Researches in South Africa」
...After seeing the work properly commenced, I sat down on a condemned canoe to amuse myself with the hippopotami by peppering their thick skulls with my No...
Henry M. Stanley 「How I Found Livingstone」
...Bones and skulls formed a Golgotha within a quarter of a mile of every village...
Samuel White Baker 「In the Heart of Africa」
...Neither is theflower-bed of Lieutenant Dom, which was bordered with human skulls...
Richard Harding Davis 「The Congo and Coasts of Africa」
...Another, but perhaps lessprobable, theory is that ancient Negroes may have entered Africafrom Europe, since the most ancient skulls of Algeria are Negroid...
W.E.B. Du Bois 「The Negro」
...Save a few good skulls and add dollars to the value of your catch...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...Not alone the skulls of the larger animals, but the skulls of any game, the skeleton of any bird, or fish, has a ready market, provided such specimens are properly cleaned, and in perfect condition...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...A glance at two skulls placed side by sidewould show at once what I mean...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...
This seems to be a doubtful species; it may probably prove to be thesame as the last, the skulls being similar...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
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