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

[399] Mallery, 4, p. 99.

[400] Hill Tout, pp. 34, 33.

[401] von den Steinen, Globus, p. 245.

[402] Weeks, Bakongo, p. 308.

[403] Handbook, p. 189.

[404] MacCauley, p. 524.

[405] Sechefo, p. 932, note 1.

[406] Stannus, p. 288.

[407] Wilson, p. 297.

[408] Musil, p. 227.