Primitive Time-reckoning / A study in the origins and first development of the art of counting time among the primitive and early culture peoples

by Martin P. Nilsson

[42] Schulze, p. 373.

[43] Foa, p. 119.

[44] Alberti, p. 69.

[45] Fabry, p. 223.

[46] Oliveau, p. 343.

[47] Spencer and Gillen, Across Austr., II, 270.

[48] Jenks, p. 219.

[49] Hose, p. 169.

[50] Wilken, p. 200.

[51] Crawfurd, I, 287 f.