...y or command. The troops at and around Drewry's Bluff are commanded by General Mahone, and are a part of General Huger's division, whose operations you of course control. As regards the work at Drewry's Bluff , it was commenced under the general plan and superintendence of Captain Rives, and subsequently has been placed in immediate charge of the Navy. The system adopted is so far advanced as to render i...