But again, the greatest mortality was among the newly imported slaves.

The diseases they contracted on the passage, and their deaths in the seasoning, all made for the same doctrine.

Add to this, that slaves bred in the islands were more expert at colonial labour, more reconciled to their situation, and better disposed towards their masters, than those who were brought from Africa.
But it had been said, that the births and deaths in the islands were now equal; and, that therefore no further supply was wanted.

He denied the propriety of this inference.

The slaves were subject to peculiar diseases.
They were exposed also to hurricanes and consequent famines.