An Historical Review of the Constitution and Government of Pennsylvania, from its Origin Richard Jackson
Also available in Rare Book.
Sometimes attributed to Benjamin Franklin. Part of the "Research Library of Colonial Americana" series.
The Proceedings Relative to Calling the Conventions on 1776 and 1790: the Minutes of the Convention Printed by John S. Wiestling
Also available on Micro.
See Part I. Includes:
The Statutes at Large of Pennsylvania in the Time of William Penn
See the "Part II Texts of the First Laws of Pennsylvania 1680-1699".
Unity from Diversity: Extracts from Selected Pennsylvania Colonial Documents, 1681 to 1780, in Commemoration of the Tercentenary of the Commonwealth Compiled and Edited by Louis M. Waddell