But though nothing was done by the persons then in power, in consequence of the murder of so many innocent individuals, yet the publication of an account of it by Mr. Sharp in the newspapers, made such an impression upon others, that new coadjutors rose up. For, soon after this, we find Thomas Day entering the lists again as the champion of the injured Africans. He had lived to see his poem of The Dying Negro, which had been published in 1773, make a considerable impression. In 1776, he had written a letter to a friend in America, who was the possessor of slaves, to dissuade him by a number of arguments from holding such property. And now, when the knowledge of the case of the ship Zong was spreading, he published that letter under the title of Fragment of an Original Letter on the Slavery of the Negroes. In this same year, Dr. Porteus, bishop of Chester, but now bishop of London, came forward as a new advocate for the natives of Africa. The way in which he rendered them service, was by preaching a sermon in their behalf, before the Society for the Propagation of the Gospel. Of the wide circulation of this sermon, I shall say something in another place, but much more of the enlightened and pious author of it, who from this time never failed to aid, at every opportunity, the cause, which he had so ably undertaken. In the year 1784, Dr. Gregory produced his Essays Historical and Moral. He took an opportunity of disseminating in these a circumstantial knowledge of the Slave-trade, and an equal abhorrence of it at the same time. He explained the manner of procuring slaves in Africa; the treatment of them in the passage, (in which he mentioned the case of the ship Zong,) and the wicked and cruel treatment of them in the colonies. He recited and refuted also the various arguments adduced in defence of the trade. He showed that it was destructive to our seamen. He produced many weighty arguments also against the slavery itself. He proposed clauses for an act of parliament for the abolition of both; showing the good both to England and her colonies from such a measure, and that a trade might be substituted in Africa, in various articles, for that which he proposed to suppress. By means of the diffusion of light like this, both of a moral and political nature, Dr. Gregory is entitled to be ranked among the benefactors to the African race.