A letter from Hon. R. W. Barnwell shows that he is opposed to any conference with the enemy on terms of peace, except unconditional independence. He thinks Hood hardly competent to command the army, but approves the removal of Johnston. He thinks Sherman will go on to Augusta, etc.

The raid toward Gordonsville is now represented as a small affair, and to have returned as it came, after burning some mills, bridges, etc.

I saw a letter, to-day, written to the President by L. P. Walker, first Secretary of War, full of praise. It was dated in August, before the fall of Atlanta, and warmly congratulated him upon the removal of Gen. Johnston.

Gov. Bonham sent a telegram to the Secretary of War, to-day, from Columbia, asking if the President would not soon pass through that city; if such were his intentions, he would remain there, being very anxious to see him.

Beauregard is at Wilmington, while the whole country is calling for his appointment to the command of the army in Georgia. Unless some great success crowns our arms before Congress reassembles, the President will be assailed with great bitterness, and the consequences may be fatal.

September 21st.—Cloudy and somber.

We have authentic intelligence of the defeat of our forces under Gen. Early, near Winchester. Two generals, Rhodes and Godwin, were killed. We lost some guns, and heavily in killed and wounded. The enemy have Winchester, and Early has retreated, bringing off his trains, however. This has caused the croakers to raise a new howl against the President, for they know not what.

Mr. Clapman, our disbursing clerk (appointed under Secretary Randolph), proposed, to-day, to several in his office—jestingly, they supposed—revolution, and installing Gen. Lee as Dictator. It may be a jest to some, but others mean it in earnest.

I look for other and more disastrous defeats, unless the speculators are demolished, and the wealthy class put in the ranks. Many of the privates in our armies are fast becoming what is termed machine soldiers, and will ere long cease to fight well—having nothing to fight for. Alas, the chivalry have fallen! The lagging land proprietors and slaveowners (as the Yankees shrewdly predicted) want to be captains, etc. or speculators. The poor will not long fight for their oppressors, the money-changers, extortioners, etc., whose bribes keep them out of the service.

Mr. Foote openly advocates a convention; and says the other States will have one certainly: and if Virginia declines to unite in it, she will be “left out in the cold.” This is said of him; I have not heard him say it. But I believe a convention in any State or States, if our disasters continue, will lead to reconstruction, if McClellan be elected. If emancipation, confiscation, etc. be insisted on, the war will never terminate but in final separation.