Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Superintendent of Public Instruction for his continued cooperation, to Miss Frances D-orrance, Secretary of Pennsylvania Historical Commis sion, to Captain Frederic A. Godcharles, its Curator, for editorial pe rusal of Dr. Schrabisch's manuscript, to Dr. H. H. Shenk, Executive Secretary of the Commission, to Mrs. Mary 0. Ramsey, of the Depart ment of Archives, and to Miss Grace Boyer, Assistant Secretary, for their able and painstaking proof reading.