...gard, by efficient traverses, from a reverse fire from Cummings's Point, in case the latter place should fall into the hands of the enemy. They have also been directed to prepare new batteries near Fort Johnson for the guns and mortars of Battery Simkins, if rendered untenable, and to at once close up the opening in rope obstructions near Fort Sumter, reopening one near Moultrie. Very respectfully, your...