Author: Robert Roberts, 56 pages, paper back. First published in 1883.  This edition was reset and  published by The Christadelphian (CMPA) in 2019.
A guide to the formation and conduct of Christadelphian ecclesias.
It also contains:
A system of rules embodying the suggestions set out in the guide.
A statement of Faith forming our basis of Fellowship (BASF).
Doctrines to be rejected
The Commandments of Christ