NO. II SMITHSONIAN EXPEDITIONS, IQIO-IQII 29 
also continued among the Indians of western Pennsylvania, south- 
western New York, Montana, and the Rio Grande Valley in New 
Mexico. Some study was given to the problem of the Indian popula- 
tion, and the special researches in Indian music were continued among 
the Chippewa. 
A certain amount of work in the way of excavation and repair was 
accomplished at Cliff Palace in southern Colorado, and a study was 
made of the extensive ruins in the Navajo National Monument, 
Arizona. 
In 1911 field work was conducted by the bureau among the tribes 
which composed the Creek Confederacy of the southern states; the 
Fic. 32—Removing pottery and other objects from a cemetery within the 
older part of the ruins. The workmen are San Ildefonso Tewa Indians. 
Photograph by Hodge. 
Tewa Indians of the Rio Grande Valley, New Mexico ; the Winnebago 
Indians of Wisconsin and Nebraska; the Piegan, Blackfeet, Chey- 
enne, and Menominee Indians of the Algonquian family ; the Chip- 
pewa Indians, especially with reference to their music; the Osage 
Indians, now in Oklahoma, and the Iroquois in New York. 
In the fall of to11, Mr. F. W. Hodge, Ethnologist-in-charge of 
the bureau, represented the Institution in an expedition to New 
Mexico, conducted under the joint auspices of the bureau and the 
School of American Archeology at Santa Fé. Early in September 
Mr. Hodge proceeded to El Morro, or Inscription Rock, in western 
New Mexico, where, with the assistance of Mr. Jesse L. Nusbaum of 
