J. E. Caldwell, executor of the will of Elihu Creswell, of New Orleans, has addressed a letter to Gov. Hunt, of New York, asking him for suggestions as to the most desirable locality for fifty-one slaves, emancipated by Mr. Creswell, with directions that they should be removed to a free State. Gov. Hunt has published the letter of Mr. Caldwell, with an extract from the will, in order to elicit the desired information. The United States Commissioner to the Western Indians, with his suite, recently arrived in Galena, Ill., from Mendota and St. Paul. The treaty with the Lower Sioux bands was signed on the 5th of August. These bands are to receive, when they have reached their destination, some $225,000, to pay their debts and expenses of removal, and an annuity in money of about $30,000, for fifty years. The lands treated for with the lower bands amount to some sixteen millions of acres. They lie along and west of the Mississippi, from the Iowa State line north to the Falls of St. Anthony, and above. The amount to be paid for this immense territory, when the treaties will have been fully carried out, will amount to the sum of nearly three millions. From _California_ we have news to the first of August. There is little intelligence of special interest. The excitement in regard to Lynch law executions had subsided, and it was believed that the courts of law would hereafter be left to the exercise of their functions. The reports from the mining districts continue to be encouraging and the shipments of gold for August and September were likely to exceed those of any previous month. Numerous canals are to be constructed for the purpose of diverting the water of streams known to be rich in gold, and abundant preparations had been made for mining the quartz rock with heavy machinery. The belief is general that this is hereafter to be the main source of profitable mining. Agriculture is attracting increased attention. Indian hostilities have ceased on the southern and eastern borders, and broken out on the northern frontier. A military expedition, under command of Gen. J. M. Estell, is to accompany the Indian Commissioners, in their tour of negotiation, to Clear Lake, thence to the sources of the Sacramento. After which they will proceed to Klamath River. The hostile Indians on Rogue's River have been dispersed but not subdued. Navigation on the upper rivers is suspended on account of the low state of water. The two political parties were holding conventions in the various counties to nominate for the Legislature and for county offices. The four candidates for Congress have been busily engaged in canvassing. The project of dividing the State is still urged in some of the southern counties, which were once the seat of nearly all the Spanish establishments in this State, but which have lost all their political importance under the new _regime_.