It may have covered an acre of ground, and the only buildings in it were four low sheds, similar in every respect to that where the slaves were sold, only much longer.

Here the captives lay picketed in rows to iron bars which ran the length of the sheds, and were fixed into the ground at either end.

This camp was separated from the Nest enclosure by a deep canal, thirty feet in width and spanned at one point by a slender and primitive drawbridge that led across the canal to the gate of the camp.

Also it was protected on the Nest side by a low wall, and on the slave-camp side by an earthwork, planted as usual with prickly-pears.

On this earthwork near the gate and little guard-house a six-pounder cannon was mounted, the muzzle of which frowned down upon the slave camp, a visible warning to its occupants of the fate that awaited the froward.