It goes under an iron bar which is bent, and the two ends fastened in a rock.

When they want to fix the boom the end of the chain is passed under this iron loop and then fastened to some blocks and ropes worked from the battery above, and the end of the chain is drawn up tight there, so that there is no loosing the chain till that battery is taken.' "'And you say the guns of the lower batteries at the inner point sweep the entrance ?' "'They do, sir.

There are ten of them on each side, twelve pounder carronades, which are always charged, and crammed up to the muzzle with bullets and nails and bits of iron.

The batteries on the top of the cliff at the entrance are the heaviest metal.

They have got twenty guns in each of them.