[13] Fifteenth Annual Report of the Bureau of American Ethnology.
[14] Tusayan Katcinas, Fifteenth Annual Report of the Bureau of American Ethnology. A figure of the symbolic sun disk from which the feathers have been removed is given on plate CIV of that memoir.
[15] The bundle here figured represents eight feathers.
[16] The symbol of the feather was painted on the vase in ancient times, whereas in modern vessels stringed feathers are tied in the same positions. Probably the latter custom was also common in ancient times.
[17] It is believed that the religious sentiment permeated and dominated all ancient Hopi art as well as sociology, and that a study of the symbolism of the decorations on ancient pottery is practically a study of religion.