JUNE 11TH.—It is coming in earnest! The supposed thunder, heard down the river yesterday, turns out to have been artillery. A fight has occurred at Bethel, and blood—Yankee blood—has flowed pretty freely. Magruder was assailed by some five thousand Yankees at Bethel, on the Peninsula. His force was about nine hundred; but he was behind intrenchments. We lost but one man killed and five wounded. The enemy’s loss is several hundred. That road to Richmond is a hard one to travel! But I learn there is a panic about Williamsburg. Several young men from that vicinity have shouldered their pens and are applying for clerkships in the departments. But most of the men of proper age in the literary institutions are volunteering in defense of their native land.