The injustice and impolicy of the slave-trade, and of the slavery of the Africans : illustrated in a sermon preached before the Connecticut Society for the Promotion of Freedom, and for the Relief of Persons Unlawfully Holden in Bondage, at their annual meeting in New-Haven, September 15, 1791. By Jonathan Edwards, D.D. Pastor of a church in New-Haven. To which is added, A short sketch of the evidence for the abolition of the slave-trade, delivered before a committee of the British House of Commons.