d on a simple fact,
which had taken place a year or two before. A poor negro had been seized
in London, and forcibly put on board a ship, where he destroyed himself,
rather than return to the land of slavery. To the poem is affixed a
frontispiece, in which the negro is represented. He is made to stand in
an attitude of the most earnest address to heaven, in the course of
which, with the fatal dagger in his hand, he breaks forth in the
following words:

To you this unpolluted blood I pour,
To you that spirit, which ye gave, restore.

This poem, which was the first ever written expressly on the subject,
was read extensively; and it added to the sympathy in favour of
suffering humanity, which was now beginning to show itself in the
kingdom.

About this time the first edition of the _Essay an Truth_ made its
appearance in the world. Dr. Beattie took an opportunity, in this work,
of vindicating the intellectual powers of the Africans from the
aspersions of Hume, and of condemning their slavery as a barbarous piece
of policy, and as inconsistent with the free and generous spirit of the
British nation.

In the year 1774, John Wesley, the celebrated divine, to whose pious
labours the religious world will long be indebted, undertook the cause
of the poor Africans. He had been in America, and had seen and pitied
their hard condition. The work which he gave to the world in
consequence, was entitled _Thoughts on Slavery_. Mr. Wesley had this
great cause much at heart, and frequently recommended it to the support
of those who attended his useful ministry.

In the year 1776, the Abbe Proyart brought out, at Paris, his _History
of Loango_, and other kingdoms in Africa, in which he did ample justice
to the moral and intellectual character of the natives there.

The same year produced two new friends in England, in the same cause,
but in a line in which no one had yet moved. David Hartley, then a
member of parliament for Hull, and the son of Dr. Hartley who wrote the
_Essay on Man_, found it impossible any longer to pass over without
notice the case of the oppressed Africans. He had long felt for their
wretched condition, and, availing himself of his legislative situation,
he made a motion in the House of Commons, "That the Slave Trade was
contrary to the laws of God, and the rights of men." In order that he
might interest the members as much as possible in his motion, he had
previously obtained some of the chains in use i