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

[52] Marsden, Sumatra, p. 194.

[53] Haddon, p. 303.

[54] Forster, pp. 441 ff.

[55] Fletcher and La Flesche, p. 111.

[56] Krause, p. 339.

[57] Crawfurd, I, 287.

[58] Merker, p. 153.

[59] Velten, p. 333.

[60] Mansfeld, p. 244.

[61] Stannus, p. 288.