[258] Concerning music and singing see: Clavigero, Storia Ant. del Messico, tom. ii., pp. 174-9; Torquemada, Monarq. Ind., tom. i., p. 229, tom. ii., pp. 551-2; Acosta, Hist. de las Ynd., p. 447; Mendieta, Hist. Ecles., pp. 140-1; Gomara, Conq. Mex., fol. 106; Pimentel, Mem. sobre la Raza Indígena, pp. 57-9; Brasseur de Bourbourg, Hist. Nat. Civ., tom. i., p. 282, tom. iii., pp. 279, 669, 672-74; Carbajal Espinosa, Hist. Mex., tom. i., pp. 641-2; Purchas his Pilgrimes, vol. iv., pp. 1064-5; Tezozomoc, Hist. Mex., tom. i., p. 61; Klemm, Cultur-Geschichte, tom. v., pp. 145-50; Müller, Amerikanische Urreligionen, p. 545; Ranking's Hist. Researches, p. 344; Prescott's Mex., vol. i., pp. 170-5, 194; Lenoir, Parallèle, p. 64; Dupaix, Rel., 2de Expéd., pl. 62-3, in Antiq. Mex., tom. iii.; Fuenleal, in Ternaux-Compans, Voy., série ii., tom. v., pp. 218-19; Boturini, Idea, pp. 85-99.

[259] Espinosa seems to think that one man did all the dancing on the summit, and Brasseur says that each of the flyers performed on the top of the mast before taking their flight.

[260] Acosta, Hist. de las Ynd., pp. 387-8.

[261] Sahagun, Hist. Gen., tom. ii., lib. viii., p. 292.

[262] Torquemada, Monarq. Ind., tom. i., pp. 53, 87; Carbajal Espinosa, Hist. Mex., tom. i., p. 238.

[263] Sahagun calls it tlaxtli, or tlachtl; and Tezozomoc tlachco, but this is shown by others to be the name of the play-ground.

[264] Gomara says tlachtli, or tlachco; Herrera, Hist. Gen., dec. ii., lib. vii., cap. viii., tlachtli.

[265] Duran makes it one hundred to two hundred feet, Espinosa fifty varas, Brasseur, Hist. Nat. Civ., tom. iii., p. 667, sixty to eighty feet.

[266] Carbajal Espinosa, Hist. Mex., tom. i., p. 647, says that the side walls are lowest, 'de ménos altura los laterales que los dos de los extremos,' but this agrees neither with other statements, nor with the requirements of the play. Sahagun's description of the tlachco gives two walls, forty to fifty feet long, twenty to thirty feet apart, and about nine feet high.

[267] Carbajal Espinosa thinks that one of them was Omeacatl, 'the god of joy.'