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

[449] Claus, p. 39.

[450] Merker, p. 156.

[451] Irle, pp. 222 ff.

[452] Heckewelder, pp. 525 ff.

[453] Dunbar, p. 1.

[454] Mooney, Siouan Tribes, p. 32.

[455] Mallery, 4, p. 88.

[456] Russel, p. 36.

[457] King, p. 215.

[458] Cp. King, pp. 95, 130, 143, 144.