He produced against it the opinion of the Lord Chief Justice Holt, who many years before had determined, that every slave coming into England became free.

He attacked and refuted it again by a learned and laborious inquiry into all the principles of Villenage.

He refuted it again, by showing it to be an axiom in the British constitution, "That every man in England was free to sue for and defend his rights, and that force could not be used without a legal process," leaving it to the judges to determine, whether an African was a man.

He attacked, also, the opinion of Judge Blackstone, and showed where his error lay.

This valuable book, containing these and other kinds of arguments on the subject, he distributed, but particularly among the lawyers, giving them an opportunity of refuting or acknowledging the doctrines it contained.
While Mr.Sharp was engaged in this work, another case offered, in which he took a part.