4, and some fifty others in smaller batteries.

All these were on the north side of the harbor.

On the southern side were the Quarantine Fort with fifty-one guns, Fort Alexander with sixty-four, the Arsenal Battery with fifty, Fort Saint Nicholas with 192, and Fort Paul with eighty.

In addition to these tremendous defences, booms had been fixed across the mouth of the harbor, and a three-decker, three two-deckers, and two frigates sunk in a line, forming a formidable barrier against the entry of hostile ships.

Besides all this, the whole of the Russian Black Sea fleet were in harbor, and prepared to take part in the defence against an attack by sea.