Titles, Ansated Cross (Crux ansata), p. 230, Vol. I; Cross, p. 1302, Vol. II; Crux, p. 1378, Vol. II; Fylfot, p. 2240, Vol. II; Gammadion, p. 2256, Vol. II.
ENCYCLOPEDIA BRITANNICA.
Title, Cross, 4º, pp. 539-542.
ENGLEHARDT, C. Influence Classique sur | le Nord Pendant l’Antiquité | par | C. Englehardt. | Traduit par | E. Beauvois. | Copenhague, | Imprimerie de Thiele. | 1876.
8º, pp. 199-318.
Solar disks, fig. 44, p. 240. Crosses, figs. 64, 65, p. 252.
ETHNOLOGY, Reports of the Bureau of. Second Annual Report, 1880-81.
Art in Shell of the Ancient Americans, by W. H. Holmes. pp. 179-305, pls. XXI-LXXVII.
Collections made in New Mexico and Arizona in 1879, by James Stevenson. pp. 307-422, figs. 347-697.
Third Annual Report, 1881-82.