2. Barracks.
3. Sally-ports.
4. Wall framed of timber, and covered with plank, and filled with stone and lime, in which is an embrasure with a 48 pounder.
5. Wall, defended with two small swivels.
6. The place at which whale-boats might easily land 500 men.
7. One entire rock, perpendicular on the face, and absolutely impossible to be climbed.
8. Piquet of large timber, fastened by iron clamps, drilled into the solid rock.
9. Commandant’s apartment, five feet high.
10. The gate under the wall, about four feet wide, formed like a common sally-port; not straight, but made an angle of 160 degrees. Ten men can prevent ten hundred making their way; this wall has but four guns and two swivels.
“I paced the island, and judged it to be about 56 yards wide and 150 long at the widest part, nearly.”