a\\e.i *i111clt;alinana in** iui*n;us urveyea i»\ experienced topographers. A iortion lt;f the expedition will traverse Death Yallev. and a water partv will ex-vlore the gnat can von of the Dolor- n ado. traveling fn-m Mohave upward ,, instead lt;*f Moating with the current ^ a has been done by some adwntur- tl ous voyagers. Full attention will | be given to the mineral resources of thf country explored and the report that will he rendered cannot fail to be of great interest.Mr. O'Sullivan, well known to many of our citizens, a tirst class jj photographer and one of long ox-|0f peri ‘nee in the army and in previous ^ exploring parties, is with the main division, now at Dun ka, and will accompany tiieexp* dith 11 to Arizona to bring back view- of the unrivaled Colorado scenery, now know to the world only from sketches and descriptions.Lieut. Wheeler i already wellknown as an energetic explorer, andis ably -conded ul every point. II i-outfit provides for every contingencyand is bv far tlie best that has ever *been prepared lor the exploration of the inhopitab!e country lie intends to examine. He cannot fail to j succeed in making a great addition to the knowledge of our State and A rizlt; »na.ritlitlireriI