1 66 WARM AN 



Issued also (with more lead between the lines) as follows : 

 Report of explorations in 1873 of the Colorado of the West and its 

 tributaries by Professor J. W. Powell, under the direction of 

 the Smithsonian Institution. 



Washington: Government Printing Office. 1874. 



Cover and 36 pp., 8°. 



The text is headed : " Report of Professor Powell on the 

 survey of the Colorado of the West." 



160. 43d Congress, ist session. House of Representatives. 



Report No. 612. Geographical and Geological Sur- 

 veys West of the Mississippi. May 26, 1874. •^^~ 

 ferred to the Committee on Appropriations and ordered 

 to be printed. 



No title-page, heading as above, 91 pp., S°. 



Contains letters and statements from J. W. Powell : in 

 regard to the advisability of consolidating the different govern- 

 ment surveys, pp. 9-10; account of work done by parties 

 under his charge, pp. 46—56. 



1875- 



161. Survey under Professor Powell. 



In Smithsonian Institution, Annual Report for the year 

 1874, pp. 40-42, Washington, 1875, 8°. 



" Continuation of the geological and geographical explora- 

 tion of the basin of the Colorado of the West in Utah." 

 Gives " interesting ethnological results obtained." 



1877. 



162. Report on the Geographical and Geological Survey of the 



Rocky Mountain region, by J. W. Powell. 



Washington : Government Printing Office. 1877. 



Cover and 19 pp., 8°, map. 



The report is dated November 25, 1877, and relates to the 

 field season of 1876, office work of i876-'77, and field season 

 of 1877. 



1878. 



163. Geographical and Geological Survey of the Rocky Moun- 



tain Region, by Prof. J. W. Powell, in 1877. 



In Smithsonian Institution, Annual Report for the year 

 1877, pp. 67-87, Washington, 1878, 8°. 



