The invaluable services rendered by Thomas Clarkson to the great question of the Slave Trade in all its branches, have been universally acknowledged both at home and abroad, and have gained him a high place among the greatest benefactors of mankind. The History of the Abolition which this volume contains, affords some means of appreciating the extent of his sacrifices and his labours in this cause. But after these, with the unwearied exertions of William Wilberforce, had conducted its friends to their final triumph, in 1807, they did not then rest from their labours. There remained four most important objects,.
