EEYIEWS. 
305 
AMERICAN' SURVEYS.* 
T HE report of Captain Jones contains an account of a reconnaissance made 
in 1873, in North-Western Wyoming, with a view of finding a good 
and shorter route from the South, by the Wind River Valley and Upper 
Yellowstone to Montana ; and from which it appears a district of consider- 
able economical importance would be opened out, both as regards the agri- 
culture and the mineral resources of the districts, especially of Montana, 
which is considered to be one of the most productive mining regions of the 
West. It is accompanied by a general map and forty-nine trail-maps, 
showing the physical features of the country passed over, of which an 
account is given in the text. The volume also includes reports on the 
Botany, Entomology, and Geology of the district explored. The latter, by 
Professor Comstock, gives a general review of the various formations 
observed, and the results of the dynamical forces which have operated, as 
well as an elaborate and interesting account of the Hot Springs and Geysers 
which form so remarkable a feature in the l r ellowstone district. These 
phenomena of post-volcanic activity must have been very extensive and of 
long duration, for there is evidence of the existence of large tracts of 
ancient hot-spring deposits in many places where there are no signs of 
present or very recent activity, showing the amount of vigour that has 
been displayed at a remote period, though geologically recent, and the per- 
sistency of the heat to the present epoch. The first number of the Bulletin 
is mainly occupied with a series of interesting accounts of the ancient 
remains, ruins, and works of art found during the progress of Geological 
Survey of the Territories, which are fully illustrated by maps, plans, and 
numerous plates of the different points explored. The bead ornaments 
used by the prehistoric people of Utah and Arizona for personal decoration 
appear to have been of four kinds — shells, chiefly the genus Oliva ; earthen- 
ware beads, turquoise very rare, and pendants made usually of stone or 
silicified wood, but occasionally of pieces of pottery. Some such ornaments 
as these are still worn among the Mojaves, Moquis, Pueblos, and Zunians of 
Arizona and New Mexico. The second part is entirely ornithological, and 
contains studies of the American Falconidae and the Ornithology of 
Gaudeloupe Island, by R. Ridgway. 
1 A volume of 500 pagesf records the progress of the operations of the 
geological survey in the more rugged mountain portions of Colorado during 
the season of 1874, and shows the continued activity of Dr. Hayden, the 
members of his staff, and the other collaborators who have contributed to 
its pages. Dr. Hayden gives a resume of the geology of the eastern base of 
* “ Report upon the Reconnaissance of North- WesternWyoming, including 
Yellowstone National Park.” By Captain W. A. Jones. With Appendix. 
Washington, 1875. “ Bulletin of the United States Geological and Geogra- 
phical Survey of the Territories.” Yol. ii. parts 1 and 2. Washington, 1876. 
t 11 The United States Geological and Geographical Survey of the 
Territories, being the Report of Progress for the year 1876.” By Dr. F. V. 
Hayden. Washington. 1876. 
YOL. XY. — NO. LX. 
X 
