At the public meetings for discipline, held by his own society in these provinces, he endeavoured to display the same truths, and in the same manner, but particularly to the elders of his own society, exhorting them, as the most conspicuous rank, to be careful of their conduct, and to give a bright example in the liberation of their slaves.

He visited, also, families for the same purpose: and he had the well-earned satisfaction of finding his admonitions kindly received by some, and of seeing a disposition in others to follow the advice he had given them.
In the year 1758, he attended the yearly meeting at Philadelphia, where he addressed his brethren on the propriety of dealing with such members as should hereafter purchase slaves.

On the discussion of this point he spoke a second time, and this to such effect that, he had the satisfaction at this meeting to see minutes made more fully than any before, and a committee appointed for the advancement of the great object, to which he had now been instrumental in turning the attention of many, and to witness a considerable spreading of the cause.

In the same year, also, he joined himself with two others of the society to visit such members of it as possessed slaves in Chester county.

In this journey he describes himself to have met with several who were pleased with his visit, but to have found difficulties with others, towards whom, however, he felt a sympathy and tenderness, on account of their being entangled by the spirit of the world.
In the year 1759, he visited several of the society who held slaves in Philadelphia.