Preface 8i 



maps, Dr. Thomas Wilson's field report, G. A. Dorsey's copy of the 

 original field-notes, and studies made during two visits to Field Museum, 

 lie before me, yet, since the work ended about February ist, 1892, 

 many years have elapsed. Much that occurred during the course of 

 explorations has been forgotten, and must necessarily be omitted. 

 Some of the ground plans are absent. The drawings of the mosaics 

 or boulder effigies are gone; and the original notebook, which my 

 friend, Mr. Willoughby, tells me he saw and examined, cannot be 

 found. However, this does not affect the accuracy of the report as a 

 whole, although it is manifest that a better report might have been 

 presented had the field-notes been expanded within a year or two after 

 the completion of the field-operations. 



In addition to the Trustees of the Museum, I desire to thank Mr. 

 C. C. Willoughby, director of the Peabody Museum at Cambridge, 

 Mass., for cooperation, assistance, and advice. Mr. Willoughby per- 

 sonally studied the Hopewell collection, shortly after the exploration 

 was completed. He has very kindly placed at my disposal some three 

 hundred pages of notes and drawings which he made at that time. 

 His familiarity with American prehistoric art-forms has enabled him to 

 point out certain comparisons of interest and value. All of his notes 

 and observations might have been submitted by him in a valuable 

 memoir of his own; yet he unselfishly placed them at my disposal, and 

 I hereby wish to tender him my most sincere appreciative thanks. 



The late Dr. Thomas Wilson, for many years curator of prehistoric 

 anthropology in the Smithsonian Institution, visited the Hopewell 

 group on two occasions. .He prepared an article setting forth his 

 observations for Dr. Holmes, who very kindly sent me the original 

 document, together with some photographs. Dr. Holmes also visited 

 the Hopewell group, and I am indebted to him for his kindness. Pro- 

 fessor W. C. Mills has, during the past years, offered several suggestions, 

 or furnished information concerning his studies of the Hopewell culture 

 in sites other than the Hopewell group itself, and I desire to record full 

 appreciation of his kindness. 



