----- 特拉华河流域考古学
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.
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