...was a perfect success; the two guns, 8-inch seacoast howitzers, were taken off, the gun-carriages and implements thrown into the river, and all done in the space of two hours. Though Rear-Admiral Dahlgren had not, up to this time, forced any of the obstructions in Charleston harbor, or made his way past the batteries (thus verifying the assertion of Admiral DuPont, that the force of Monitors was not e...