FOREWORD 



The investigation which forms the subject of this Memoir 

 was undertaken at the instance of Mr. George L. Harrison, Jr., 

 who generously provided the funds for the purpose. The 

 actual excavation, which occupied the summer of 1915, was 

 done in person by Dr. E. W. Hawkes and Mr. Ralph Linton, 

 and the preparation of this report is their joint work. 



During the progress of the digging, the site was visited 

 by Prof. Amos P. Brown of the University of Pennsylvania, 

 who studied the geological conditions and who has given us the 

 benefit of his observations. According to Prof. Brown, there 

 are indications that the yellow sand is a wind-borne deposit 

 laid down upon the layer of white glacial sand, and though 

 its age is not clearly defined, it must be of considerable 

 antiquity. 



The publication of this paper is due to the generosity of 

 Mr. Eckley B. Coxe, Jr., President of the Museum. 



G. B. GORDON, 

 Director of the Museum. 

 April 1, 1916. 



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