On Membership In The Society Of Friends is a book written by Robert Barclay and first published in 1872. It is a comprehensive guide to the beliefs and practices of the Society of Friends, also known as Quakers. The book covers topics such as the history of the Society, the importance of membership, the role of the meeting, and the Quaker approach to worship, prayer, and social justice. Barclay also explores the Quaker testimonies of simplicity, peace,...