...London. The most formidable of these piratical vessels fitted out in Great Britain and afloat in 1864, were the Alabama and Florida, already noticed, commanded respectively by Captains Semmes and Maffit . The former was in command of the Sumter, whose career suddenly ended early in 1862. The latter, as we have observed, went out from Mobile in the Oreto, afterward named Florida, to play the pi...