...trategical speech, illustrated by maps and diagrams, showing how the rebels could be circumvented.--Jefferson Davis sent a message to the rebel Congress, which was received and read in both houses.--( Doc . 21.) A brisk cannonade between Fort Moultrie and Battery Gregg, in Charleston harbor, was carried on this day. The firing on Fort Sumter was moderated.--in a speech before the rebel Congr...