Our news from Charleston, contained in the dispatches of Saturday and Saturday night, is of the utmost significance and importance.
We have a repetition in fuller detail of the report said to have been brought by the steamer Florida to the blockading squadron off Wilmington, N. C., that Fort Sumter had surrendered. It is also asserted that Fort Wagner had been blown up (by the rebels, we presume,) and that the "stars and stripes" were floating over both strongholds. This news is almost startling, and its confirmation will be looked for with intense interest. If true, Gen. Gilmore has obtained new and important advantages. Battery Gregg, on Cummings Point, will only remain to be reduced to give him complete possession of Morris Island. He will be able to operate directly against this Battery (which has, no doubt, been greatly strengthened by this time) as well as against Fort Moultrie and Battery Beauregard, on the opposite side of the channel. But the most important advantage will be gained if he is enabled to bring up his "swamp angel" in nearer range of Charleston. The efficacy of its fire is already acknowledged by the rebels with astonishment and alarm. Its nearer approach would carry the conflict beyond the batteries and forts which line the harbor, to the very streets and squares of the rebel Sodom, much sooner than has been anticipated by its braggart defenders.
The next arrival will be awaited with anxiety; and, if it shall confirm this news, the statement of a Fortress Monroe dispatch, that "the capture and occupation of Charleston in a few days by the Union troops is morally certain," will seem to possess strong grounds of probability.
Since the above was in type our Sunday night dispatches have been received, which imply that the report of the capture of Fort Wagner was premature. The rebel report of the situation makes it evident that Gen. Gilmore is pushing forward the siege with great energy.