The siege of Charleston.
--The Charleston papers furnish the following relative to the progressing siege of that city:The firing of the enemy from Gadberry. Hill Thursday was more rapid than that of the previous day. The fire was directed on Forts Sumter, Johnson, and Battery Simkins, but principally on Fort Sumter. From the rapidity with which the enemy fires and very heavy reports made, it is believed that the battery on Gadberry Hill has received and mounted several new 200 pounder Parrott guns, all the shells so far thrown being from guns of that size. The enemy's fire was again wild, many of the shells falling in the river. A few glanced and struck the parapet on the northwest angle of Fort Sumter, doing very little damage. We heard of no casualties at the fort. The fire on Fort Johnson was quite heavy for a time Thursday morning, but gradually slackened in the afternoon.--The enemy also sent an occasional shell towards battery Simkins, doing no damage.
Fort Moultrie and Battery Simkins maintain a regular fire on Gregg and Wagner.--The Yankee laboring force at Battery Wagner seem to have been largely increased within the last day or two. They seem to be energetically at work, not paying so much attention to the shells from our batteries as formerly.
The firing of the enemy from Gadberry Hill was less rapid and sustained on Friday than on the day preceding. His shots were as usual principally directed against Sumter, but Johnson and Simkins also received a considerable share of attention. Up to yesterday the damage inflicted on Fort Sumter has been officially reported as very slight.--A negro lost his arm at Johnson on Thursday.
