The only recent account of the country between the Gila and the Colorado which I have been able to meet with, is in Pattie’s Narrative, a hunter of Kentucky, who trapped on the Gila and Colorado twenty-five years ago, whose journal is done into readable English by the geographer, Flint. Pattie saw many of these ruins; saw much fine land heavily timbered; and by the friendship of the Nabahoes, was directed through a pass at the head of the Colorado which carried him to the Platt of the Missouri. This is, possibly, the pass sought for by Colonel Fremont. Pattie went through it in May; if it was bad then, what must it have been in the depth of winter! I am of opinion, that between 32° and 37° there is sufficient land to make two States, without going east of the Rio Grande del Norte. Yet, it was but partially seen by Pattie. It appears to be a mountainous country, well watered, and no doubt abounding in minerals, and having many rich valleys adapted to cultivation. The Colorado is a fine river, navigable eight hundred or a thousand miles with steamboats, unless there be obstructions that we do not know of. In extent, it is equal to Pennsylvania or Virginia. It will not be long before it will be thoroughly explored by our countrymen. Pattie says that it contains numerous bands of the most savage and ferocious Indians, armed with bows and arrows pointed with flint, who have had no intercourse or knowledge of the whites. He says that the country in some respects reminded him of parts of Kentucky, his native State. H. M. BRACKENRIDGE. ------------------------------------------------------------------------ DESTRUCTION OF THE INDIANS BY SMALL-POX.