It is my pleasant duty to thank, first of all, the Chief of the Bureau of American Ethnology, Mr. Matthew W. Stirling, for allowing this paper to be published in the series of annual reports, and for the uniformly courteous treatment I have received from him.

Dr. Truman Michelson and Dr. John R. Swanton, both of the same bureau, have very kindly given me the benefit of their wide experience, and have offered me many valuable hints on how an index may be of the utmost value to its user. I take this opportunity of expressing my gratitude to them; but I wish it to be understood that they are in no way responsible for any mistakes I may have made.

Forty-Eighth Annual Report of the Bureau of American Ethnology. — Part 17

I also must not forget to express my genuine appreciation of the excellent indexing work of Mrs. Frances S. Nichols, without which my labor would have been considerably increased. For indexing the reports of the last few years I have done very little except to classify and rearrange the work of Mrs. Nichols, with slight additions and alterations here and there in order to obtain uniformity for the whole work.

Forty-Eighth Annual Report of the Bureau of American Ethnology. — Part 17

I also wish to thank all the officials of the Bureau of American Ethnology with whom I came in contact during my frequent visits to that institution for their unfailing courtesy and willing cooperation.

Forty-Eighth Annual Report of the Bureau of American Ethnology. — Part 17

The references in the index are as follows:

Vol. 2 Zuñi (pp. 3-45); Iroquois (pp. 47-116); Navaho (pp. 167-178).

Vol. 3 Omaha (pp. 205-370); Navaho (pp. 371-391).

Vol. 5 Cherokee (pp. 121-378); Navaho (pp. 379-467); Seminole (pp. 469-531); Zuñi (from p. 533).

Vol. 6 Maya (pp. 253-371); Osage (pp. 373-397); Central Eskimo (from p. 399).

Vol. 7 Ojibwa (pp. 143-300); Cherokee (pp. 301-397).

Vol. 9 Point Barrow Eskimo (to p. 441); Apache (from p. 443).

Vol. 11 Sia (to p. 157); Eskimo of Ungava District (pp. 159-350); Siouan tribes (from p. 351).

Vol. 13 Omaha (pp. 263-288); Zuñi (from p. 321).

Vol. 15 Siouan tribes (pp. 153-244); Tusayan (pp. 245-313).

Vol. 16 Peruvian (to p. 72); Maya (pp. 199-265); Tusayan (from p. 267).

Vol. 17 Seri (pp. 1-128, 129*-344*); Kiowa (pp. 129-445); Navaho (pp. 469-517).

Vol. 18 Eskimo of Bering Strait (to p. 518).

Vol. 19 Cherokee (to p. 548); Tusayan (pp. 573-653, 957-1011); Maya (pp. 693-819).

Vol. 21 Hopi (to p. 126); Iroquois (from p. 127).