R ep ort of are e onais sane e of the basin of the u pp er Y e llow1I 
Q s ton e in 1871. (By eaptain J. W. Barl0 w, assisted by eaptain 
..,{) D. P. Heap, eorps of engineers. (Senate. Ud Congress, 2d Session; 

Ex Doe. No. 66.) (Mit 1 Karte.) 8. Washington 1872.