With a foreword by Herbert Keyser Zearfoss, Governor of the Colonial Society of Pennsylvania and Joseph Pennington Straus, President of the Welcome Society of Pennsylvania. Describes the history of research into court records for Pennsylvania including the lower counties known as Delaware and the finding of the manuscript court records which forms the basis of this study. The introduction gives an overview of the legal system during this period. xiii,670, 2 ; xiii, iii ,671-1427, 3 pages. cloth. 8vo..