Nor were writers wanting, who, influenced by considerations on the war, and the independence resulting from it, made their works subservient to the same benevolent end.  A work, entitled A Serious Address to the Rulers of America on the Inconsistency of their Conduct respecting Slavery, forming a Contrast between the Encroachments of England on American Liberty and American Injustice in tolerating Slavery; which appeared in 1783, was particularly instrumental in producing this effect.  This excited a more than usual attention to the case of these oppressed people, and where most of all it could be useful; for the author compared in two opposite columns the animated speeches and resolutions of the members of congress in behalf of their own liberty with their conduct in continuing slavery to others.  Hence the legislature began to feel the inconsistency of the practice; and so far had the sense of this inconsistency spread there, that when the delegates met from each state to consider of a federal union, there was a desire that the abolition of the Slave Trade should be one of the articles in it.  This was, however, opposed by the delegates from North and South Carolina, Virginia, Maryland, and Georgia, the five states which had the greatest concern in slaves.  But even these offered to agree to the article, provided a condition was annexed to it, (which was afterwards done,) that the power of such abolition should not commence in the legislature till the 1st of January, 1808.

In consequence then of these different circumstances, the Society of Pennsylvania, the object of which was “for promoting the abolition of slavery and the relief of free negroes unlawfully held in bondage,” became so popular, that in the year 1787 it was thought desirable to enlarge it.  Accordingly several new members were admitted into it.  The celebrated Dr. Franklin, who had long warmly espoused the cause of the injured Africans, was appointed president; James Pemberton and Jonathan Penrose were appointed vice-presidents; Dr. Benjamin Rush and Tench Coxe, secretaries; James Star, treasurer; William Lewis, John D. Coxe, Miers Fisher, and William Rawle, counsellors; Thomas Harrison, Nathan Boys, James Whiteall, James Reed, John Todd, Thomas Armatt, Norris Jones, Samuel Richards, Francis Bayley, Andrew Carson, John Warner, and Jacob Shoemaker, junior, an electing committee; and Thomas Shields, Thomas Parker, John Oldden, William Zane, John Warner, and William McElhenny, an acting committee for carrying on the purposes of the institution.

I shall now only observe further upon this subject, that as a society, consisting of an union of the Quakers, with others of other religious denominations, was established for Pennsylvania in behalf of the oppressed Africans; so different societies, consisting each of a similar union of persons, were established in New York, Connecticut, New Jersey, Delaware, Maryland, and other states for the same object, and that these afterwards held a correspondence and personal communion with each other for the promotion of it.