REPORT OF THE SECRETARY. 57 



mountains. Collections in various departments of zoology were made 

 along the whole route traversed, but particularly on and near the Eabbit 

 Ear range of mountains ; and careful observations were taken of the 

 various zoological phenomena which presented themselves. The collec- 

 tions have been deposited in the National Museum, with the exceptiou 

 of the osteological material, which has been donated to the Army 

 Medical Museum. The material secured will become the basis of Dr. 

 Coues' reports upon the zoology of the region explored. In the gen- 

 eral field-work the zoologist in charge was ably assisted by Mr. L. M. 

 Cuthbert, of Washington, and Mr. W. W. Karr, of Memphis. 



The Photographic division of the survey did not take the field during 

 1876, partly on account of the lateness of the season, but also in part 

 because of the accumulation of office-work. Mr. Jackson, the photog- 

 rapher, remained in Washiugton during the summer engaged in arrang- 

 ing the collection of Indian photographs and preparing material for the 

 publication of a historical and biographical catalogue of photographs of 

 seventy-five tribes of the North American Indians. 



The survey, in addition to its field-work, prepared an exhibit for the 

 International Centennial Exhibition. The exhibit was divided into 

 models, maps, photographs, publications, sketches, and pictures in 

 water-colors, and chromos, and specimens. There were two classes of 

 models, one representing geological structure and the other the ancient 

 ruins of Southwestern Colorado and portions of adjacent territories. 

 One of the latter class represents a two-story cliff-house of the Eio Man- 

 cos of Colorado. It is built in the crevice of the rock, 800 feet above the 

 valley, in an almost inaccessible situation. Another model represent? 

 the ruins of a double- walled tower, a form of building that seems to have 

 been common among the ancient inhabitants of the region. There were 

 also two models of a cave-dwelling of the Eio de Chelly of Northeastern 

 Arizona, one representing the ruins and the other their ideal restora- 

 tion. The geological and topographical models were as follows : Two 

 of the Elk Mountains, one of them being divided into sections, showing 

 the internal structure of the range, and the other showing only the to- 

 pography and geology, the latter represented by colors. The maps on 

 exhibition were topographical, geological, and hypsometric. The pho- 

 tographs and positives on glass represented the scenery and ruins of 

 the West and the hot springs of the Yellowstone National Park. Full 

 sets of the reports, with sketches in color of scenery and in crayon of 

 Indians, and also specimens from the Yellowstone hot springs, added to 

 the exhibit. 



During 1876 the following publications were issued by the survey : 

 - Bulletins, volume ii, (Nos. 1, 2, 3, and 4,) comprising over 300 pages, 

 with 110 illustrations. 



Eighth Annual Eeport, (Colorado and adjacent territory,) 515 pages 

 and 88 illustrations. 



Monograph of the Geometrid Moths, by A. S. Packard, jr., 007 pages 

 and 13 plates. 



